{"id":4905,"date":"2020-01-13T02:23:16","date_gmt":"2020-01-13T02:23:16","guid":{"rendered":"http:\/\/fisicaevestibular.com.br\/novo\/?page_id=4905"},"modified":"2024-09-04T15:00:10","modified_gmt":"2024-09-04T15:00:10","slug":"resolucao-comentada-vestibulares-recentes-2018-2019-ondas","status":"publish","type":"page","link":"https:\/\/fisicaevestibular.com.br\/novo\/vestibulares-recentes\/ondulatoria\/ondas-conceitos-e-definicoes-2018-2019\/resolucao-comentada-vestibulares-recentes-2018-2019-ondas\/","title":{"rendered":"Resolu\u00e7\u00e3o comentada \u2013 Vestibulares recentes \u2013 2018\/2019 &#8211; Ondas"},"content":{"rendered":"<p align=\"CENTER\"><span style=\"color: #c00000;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\">Resolu\u00e7\u00e3o comentada \u2013 Vestibulares recentes \u2013 2018\/2018<\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><span style=\"color: #c00000;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\">Ondas<\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\"><b>01-<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>I. Correta<\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Ondas mec\u00e2nicas<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Ondas mec\u00e2nicas\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>s\u00e3o aquelas\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>que necessitam\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>de um\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>meio material para se propagar, transportando energia<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>.\u00a0<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Exemplos: Ondas no ma<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>r (o meio \u00e9 a \u00e1gua),\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>ondas sonoras\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>(o meio pode ser ar, \u00e1gua, etc.),\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>ondas em uma corda\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>(o meio \u00e9 a corda),\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>etc<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Todas essas perturba\u00e7\u00f5es s\u00e3o causadas em meios materiais.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>II. Falsa<br \/>\n<\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Ondas eletromagn\u00e9ticas<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Ondas eletromagn\u00e9ticas\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>s\u00e3o ondas que\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>n\u00e3o precisam de um meio material para se propagar, transportando energia.<\/b><\/span><\/span><\/span><\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/recentes-2019\/ondulatoria\/VROndulat\u00f3ria_html_11f09918.png\" width=\"771\" height=\"186\" name=\"Imagem 242\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>III. Falsa \u2013\u00a0micro-ondas\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>s\u00e3o\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>ondas eletromagn\u00e9ticas\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>(veja II).<\/b><\/span><\/span><\/span><span style=\"color: #111111;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b><br \/>\n<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>R- A<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\"><b>02-<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000ff;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Para resolver este exerc\u00edcio, conv\u00e9m revisar alguns conceitos:<\/b><\/span><\/span><\/span><\/p>\n<ol>\n<li><span style=\"color: #ff0000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>A amplitude \u00e9 a dist\u00e2ncia entre uma crista, ou um vale, ao seu n\u00edvel de equil\u00edbrio. No caso da figura, destaquei a dist\u00e2ncia de uma crista ao n\u00edvel de equil\u00edbrio.<\/b><\/span><\/span><\/span><\/li>\n<li><span style=\"color: #ff0000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>O per\u00edodo \u00e9 definido como o tempo necess\u00e1rio para um ciclo, ou seja, para que o padr\u00e3o da onda se repita.<\/b><\/span><\/span><\/span><\/li>\n<li><span style=\"color: #ff0000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>A frequ\u00eancia \u00e9 o inverso do per\u00edodo, a saber: ;<\/b><\/span><\/span><\/span><\/li>\n<li><span style=\"color: #ff0000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Por \u00faltimo, o que define a velocidade de propaga\u00e7\u00e3o da onda \u00e9 o meio no qual ela se propaga.<\/b><\/span><\/span><\/span><\/li>\n<\/ol>\n<p><span style=\"color: #0000ff;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Observe a figura do enunciado com\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #ff0000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>per\u00edodo e amplitude destacados<\/b><\/span><\/span><\/span><span style=\"color: #0000ff;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>:<\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><img decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/recentes-2019\/ondulatoria\/VROndulat\u00f3ria_html_d08ceaf7.png\" width=\"545\" height=\"188\" name=\"Imagem 243\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #0000ff;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Segundo a figura, as\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #ff0000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>amplitudes s\u00e3o iguais<\/b><\/span><\/span><\/span><span style=\"color: #0000ff;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>, mas os\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #ff0000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>per\u00edodos s\u00e3o diferentes<\/b><\/span><\/span><\/span><span style=\"color: #0000ff;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>. Como os\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #ff0000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>per\u00edodos s\u00e3o diferentes<\/b><\/span><\/span><\/span><span style=\"color: #0000ff;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>, as\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #ff0000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>frequ\u00eancias tamb\u00e9m o ser\u00e3o<\/b><\/span><\/span><\/span><span style=\"color: #0000ff;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>, visto a rela\u00e7\u00e3o apresentada no item (iii). Por \u00faltimo, como as\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #ff0000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>ondas est\u00e3o no mesmo meio<\/b><\/span><\/span><\/span><span style=\"color: #0000ff;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>, elas\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #ff0000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>apresentam velocidades de propaga\u00e7\u00e3o iguais por estarem propagando-se no mesmo meio<\/b><\/span><\/span><\/span><span style=\"color: #0000ff;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000ff;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Diante de tudo isto, a\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #ff0000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>alternativa correta \u00e9 a E<\/b><\/span><\/span><\/span><span style=\"color: #0000ff;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\"><b>03-<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Pelo enunciado\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>voc\u00ea deve escolher\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>ondas eletromagn\u00e9ticas com os menores comprimentos de onda e, portanto, maiores energias que s\u00e3o os raios gama.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>R- E<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\"><b>04-<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>(A) Falsa\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>\u2013 a\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>amplitude e a intensidade diminuem \u00e0 medida que as ondas de ultra-som, sobre sua forma de feixe, passam atrav\u00e9s de um meio<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>. Essa\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>diminui\u00e7\u00e3o de intensidade \u00e9 causada pela difus\u00e3o do som em um meio heterog\u00eaneo, pela reflex\u00e3o e refra\u00e7\u00e3o nas interfaces e pela absor\u00e7\u00e3o do meio.<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b><br \/>\nO feixe de ultra-som pode ter sua intensidade original reduzida pela metade em determinada dist\u00e2ncia, em determinados tecidos com espessuras espec\u00edficas. Cada tecido possui valores diferentes de atenua\u00e7\u00e3o conforme sua espessura, assim como a frequ\u00eancia do ultra-som utilizado.<br \/>\n<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>(B) Falsa \u2013 Microondas s\u00e3o ondas eletromagn\u00e9ticas exatamente como as ondas de r\u00e1dio, ondas usadas nos celulares, luz e os raios infravermelhos.<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>\u00a0A diferen\u00e7a est\u00e1 apenas na frequ\u00eancia, ou seja, no n\u00famero de vibra\u00e7\u00f5es.<br \/>\n<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>(C) Falsa \u2013\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Como o raio X \u00e9 um tipo de radia\u00e7\u00e3o que consegue\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>atravessar facilmente a pele, os tecidos moles e o ar, mas que \u00e9 absorvido pelos tecidos mais duros, como os ossos, s\u00f3 os raios que atravessam conseguem chegar na placa de filme.<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>\u00a0Quando isso acontece, os raios que conseguiram passar\u00a0provocam uma rea\u00e7\u00e3o na prata do filme que a deixa preta.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Assim, quando o filme \u00e9 revelado, as partes moles e o ar aparecem a preto, enquanto os tecidos mais duros ficam a branco. Quando um t\u00e9cnico especializado de imagem avalia o filme, consegue referir as altera\u00e7\u00f5es presentes, permitindo que o m\u00e9dico chegue num diagn\u00f3stico.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>(D) Correta \u2013\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>O objetivo da\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>irradia\u00e7\u00e3o (radia\u00e7\u00e3o) aplicada a alimentos \u00e9 o aumento de sua vida \u00fatil.\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Este processo de conserva\u00e7\u00e3o pode ser aplicado em v\u00e1rios tipos de alimentos. Al\u00e9m de\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>aumentar o tempo de conserva\u00e7\u00e3o, o tratamento pode ser utilizado para a destrui\u00e7\u00e3o de insetos, bact\u00e9rias patog\u00eanicas, fungos e leveduras.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>R- D<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\"><b>05-<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>I. Falsa\u00a0\u2013 a amplitude da onda \u00e9 A = 5 cm.<\/b><\/span><\/span><\/span><\/span><\/p>\n<p><img decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/recentes-2019\/ondulatoria\/VROndulat\u00f3ria_html_38a89ade.png\" width=\"769\" height=\"211\" name=\"Imagem 244\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>II. Correta<\/b><\/span><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/recentes-2019\/ondulatoria\/VROndulat\u00f3ria_html_488f8b3b.png\" width=\"34\" height=\"14\" name=\"Imagem 245\" align=\"BOTTOM\" border=\"0\" \/><span style=\"color: #c00000;\">\u00a0\u00a0<\/span><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>Comprimento de onda (\u03bb)\u00a0<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/recentes-2019\/ondulatoria\/VROndulat\u00f3ria_html_8a68e94c.png\" width=\"21\" height=\"13\" name=\"Imagem 246\" align=\"BOTTOM\" border=\"0\" \/><\/b><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><b>\u00a0representa a dist\u00e2ncia percorrida pela onda at\u00e9 come\u00e7ar\u00a0<\/b><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>novamente a repeti\u00e7\u00e3o,\u00a0<\/b><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><b>ou seja, \u00e9 a\u00a0<\/b><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>menor dist\u00e2ncia entre dois pontos consecutivos\u00a0<\/b><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><b>que est\u00e3o em<\/b><\/span><\/span><\/span><\/span><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/recentes-2019\/ondulatoria\/VROndulat\u00f3ria_html_1329e4c1.png\" width=\"757\" height=\"217\" name=\"Imagem 3\" align=\"LEFT\" border=\"0\" hspace=\"6\" \/><\/p>\n<p><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>concord\u00e2ncia de fase\u00a0<\/b><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><b>como por exemplo, a\u00a0<\/b><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>menor dist\u00e2ncia entre duas cristas ou dois vales.<\/b><\/span><\/span><\/span><\/span><\/p>\n<p><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>III. Correta<\/b><\/span><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/recentes-2019\/ondulatoria\/VROndulat\u00f3ria_html_c76f9e4f.png\" width=\"765\" height=\"148\" name=\"Imagem 248\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #111111;\"><span style=\"font-family: Arial, serif;\"><b>V =\u00a0<\/b><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>\u03bb.f = 0,80.40 = 32 m\/s<\/b><\/span><\/span><\/span><\/span><\/p>\n<p><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>IV. Falsa<\/b><\/span><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/recentes-2019\/ondulatoria\/VROndulat\u00f3ria_html_488f8b3b.png\" width=\"34\" height=\"14\" name=\"Imagem 249\" align=\"BOTTOM\" border=\"0\" \/><span style=\"color: #111111;\">\u00a0<\/span><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>Per\u00edodo (T)\u00a0<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/recentes-2019\/ondulatoria\/VROndulat\u00f3ria_html_8a68e94c.png\" width=\"21\" height=\"13\" name=\"Imagem 250\" align=\"BOTTOM\" border=\"0\" \/><\/b><\/span><\/span><span style=\"color: #111111;\"><span style=\"font-family: Arial, serif;\"><b>\u00a0<\/b><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>tempo\u00a0<\/b><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><b>que a\u00a0<\/b><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>onda demora\u00a0<\/b><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><b>para\u00a0<\/b><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>percorrer um comprimento de onda\u00a0(1\u03bb),<\/b><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><b>que \u00e9 o\u00a0<\/b><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>mesmo tempo que um ponto qualquer da onda demora\u00a0<\/b><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><b>para\u00a0<\/b><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>efetuar uma oscila\u00e7\u00e3o\u00a0<\/b><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><b>(vai e vem)\u00a0<\/b><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>completa<\/b><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><b>\u00a0e que\u00a0<\/b><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>\u00e9 o mesmo tempo que a fonte demora para gerar uma onda completa.<\/b><\/span><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/recentes-2019\/ondulatoria\/VROndulat\u00f3ria_html_6c8e5849.png\" width=\"196\" height=\"66\" name=\"Imagem 251\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>T = 1\/f\u00a0<\/b><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><b>= 1\/40\u00a0<\/b><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>= 0,025 s<\/b><\/span><\/span><\/span><\/span><\/p>\n<p><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>V. Falsa<\/b><\/span><\/span><span style=\"color: #111111;\"><span style=\"font-family: Arial, serif;\"><b>\u00a0<\/b><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><b>\u2013 S\u00e3o\u00a0<\/b><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>ondas mec\u00e2nicas.<\/b><\/span><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><b>Ondas mec\u00e2nicas<\/b><\/span><\/span><\/span><\/span><\/p>\n<p><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>Ondas mec\u00e2nicas\u00a0<\/b><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><b>s\u00e3o aquelas\u00a0<\/b><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>que necessitam\u00a0<\/b><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><b>de um\u00a0<\/b><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>meio material para se propagar, transportando energia<\/b><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><b>.\u00a0<\/b><\/span><\/span><\/span><\/span><\/p>\n<p><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>Exemplos: Ondas no ma<\/b><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><b>r (o meio \u00e9 a \u00e1gua),\u00a0<\/b><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>ondas sonoras\u00a0<\/b><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><b>( o meio pode ser ar, \u00e1gua, etc.),<\/b><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>ondas em uma corda\u00a0<\/b><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><b>(o meio \u00e9 a corda),\u00a0<\/b><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>etc<\/b><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><b>.<\/b><\/span><\/span><\/span><\/span><\/p>\n<p><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>Todas essas perturba\u00e7\u00f5es s\u00e3o causadas em meios materiais.<\/b><\/span><\/span><\/span><\/span><\/p>\n<p><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><b>R- E<\/b><\/span><\/span><\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\"><b>06-<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><b>As\u00a0<\/b><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>ondas\u00a0eletromagn\u00e9ticas\u00a0s\u00e3o resultado das combina\u00e7\u00f5es de\u00a0campos el\u00e9tricos\u00a0e\u00a0campo magn\u00e9ticos.<\/b><\/span><\/span><\/span><\/span><\/p>\n<p><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><b>As\u00a0<\/b><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>ondas eletromagn\u00e9ticas resultam da combina\u00e7\u00e3o de um campo el\u00e9trico e de um magn\u00e9tico que se propagam no espa\u00e7o<\/b><\/span><\/span><\/span><\/span><\/p>\n<p><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><b>A\u00a0<\/b><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>intera\u00e7\u00e3o entre esses campos \u00e9 respons\u00e1vel pelo surgimento das ondas eletromagn\u00e9ticas.<\/b><\/span><\/span><\/span><\/span><\/p>\n<p><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><b>R- B<\/b><\/span><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\"><b>07-<\/b><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/recentes-2019\/ondulatoria\/VROndulat\u00f3ria_html_11e9c820.png\" width=\"770\" height=\"354\" name=\"Imagem 252\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><b>O\u00a0<\/b><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>que faz com que se diferenciem\u00a0<\/b><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><b>e n\u00e3o\u00a0<\/b><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>interfiram uma na outra\u00a0<\/b><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><b>\u00e9\u00a0<\/b><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>a frequ\u00eancia na qual operam e seu\u00a0comprimento de onda.<\/b><\/span><\/span><\/span><\/span><\/p>\n<p><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #ff0000;\"><span style=\"font-family: Arial, serif;\"><b>R- C<\/b><\/span><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\"><b>08-<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #0000ff;\"><span style=\"font-family: Arial, serif;\"><b>Para esse problema precisamos\u00a0<\/b><\/span><\/span><span style=\"color: #ff0000;\"><span style=\"font-family: Arial, serif;\"><b>analisar o espectro eletromagn\u00e9tico,<\/b><\/span><\/span><span style=\"color: #0000ff;\"><span style=\"font-family: Arial, serif;\"><b>\u00a0observe ele logo abaixo:<\/b><\/span><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/recentes-2019\/ondulatoria\/VROndulat\u00f3ria_html_394f46d8.png\" width=\"499\" height=\"150\" name=\"Imagem 253\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #0000ff;\"><span style=\"font-family: Arial, serif;\"><b>Como podemos perceber\u00a0<\/b><\/span><\/span><span style=\"color: #ff0000;\"><span style=\"font-family: Arial, serif;\"><b>a faixa do vis\u00edvel se localiza entre o Infravermelho (1012\u00a0a 1014) e o ultravioleta (1014\u00a0a 1017),<\/b><\/span><\/span><span style=\"color: #0000ff;\"><span style=\"font-family: Arial, serif;\"><b>\u00a0o \u00fanico valor poss\u00edvel, portanto, \u00e9 o de 6.1014,\u00a0<\/b><\/span><\/span><span style=\"color: #ff0000;\"><span style=\"font-family: Arial, serif;\"><b>alternativa C.<\/b><\/span><\/span><\/span><\/span><\/p>\n<p><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #0000ff;\"><span style=\"font-family: Arial, serif;\"><b>03 \u2013\u00a0Nesse exerc\u00edcio s\u00f3 precisamos nos lembrar do\u00a0<\/b><\/span><\/span><span style=\"color: #ff0000;\"><span style=\"font-family: Arial, serif;\"><b>Teorema da energia cin\u00e9tica,<\/b><\/span><\/span><span style=\"color: #0000ff;\"><span style=\"font-family: Arial, serif;\"><b>\u00a0que diz: \u201c<\/b><\/span><\/span><span style=\"color: #ff0000;\"><span style=\"font-family: Arial, serif;\"><b>O trabalho da resultante de todas as for\u00e7as que agem sobre um corpo \u00e9 igual \u00e0 varia\u00e7\u00e3o da energia cin\u00e9tica sofrida pelo corpo\u201d.\u00a0<\/b><\/span><\/span><span style=\"color: #0000ff;\"><span style=\"font-family: Arial, serif;\"><b>Sendo assim,\u00a0<\/b><\/span><\/span><span style=\"color: #ff0000;\"><span style=\"font-family: Arial, serif;\"><b>a alternativa correta \u00e9 a A.<\/b><\/span><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\"><b>09-<\/b><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/recentes-2019\/ondulatoria\/VROndulat\u00f3ria_html_7b474e46.png\" width=\"765\" height=\"276\" name=\"Imagem 254\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\"><b>10-<\/b><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/recentes-2019\/ondulatoria\/VROndulat\u00f3ria_html_c76f9e4f.png\" width=\"765\" height=\"148\" name=\"Imagem 255\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><b>A\u00a0<\/b><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>frequ\u00eancia da onda que est\u00e1 se propagando\u00a0<\/b><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><b>\u00e9 a\u00a0<\/b><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>mesma independente do meio de propaga\u00e7\u00e3o,\u00a0<\/b><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><b>assim\u00a0<\/b><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>fa\u00e7o\u00a0= falum\u00ednio\u00a0= f.<\/b><\/span><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/recentes-2019\/ondulatoria\/VROndulat\u00f3ria_html_b882344a.png\" width=\"775\" height=\"59\" name=\"Imagem 256\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\"><b>11-<\/b><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/recentes-2019\/ondulatoria\/VROndulat\u00f3ria_html_b0fe2fab.png\" width=\"765\" height=\"56\" name=\"Imagem 257\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\"><b>12-<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"font-family: Times New Roman, serif;\"><span style=\"font-size: medium;\"><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>S\u00e3o dados,<\/b><\/span><\/span><span style=\"color: #111111;\"><span style=\"font-family: Arial, serif;\"><b>\u00a0<\/b><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>V = 3,0.108\u00a0m\/s,<\/b><\/span><\/span><span style=\"color: #111111;\"><span style=\"font-family: Arial, serif;\"><b>\u00a0<\/b><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>\u00a0=<\/b><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><b>\u00a02,0 cm = 0,02 m\u00a0<\/b><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><b>= 2,0.10-2\u00a0m e pedido f = ?.<\/b><\/span><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/recentes-2019\/ondulatoria\/VROndulat\u00f3ria_html_c76f9e4f.png\" width=\"765\" height=\"148\" name=\"Imagem 258\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/recentes-2019\/ondulatoria\/VROndulat\u00f3ria_html_96a9158.png\" width=\"774\" height=\"108\" name=\"Imagem 259\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\"><b>13-<\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/recentes-2019\/ondulatoria\/VROndulat\u00f3ria_html_3effcc24.png\" width=\"485\" height=\"88\" name=\"Imagem 260\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Observe na\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>express\u00e3o acima\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>que, sendo a\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>velocidade da luz (c) constante,\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>a\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>velocidade de propaga\u00e7\u00e3o (V) da onda depende apenas do \u00edndice de refra\u00e7\u00e3o (n) do meio onde a onda est\u00e1 se propagando,<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>\u00a0ou seja,\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>depende apenas das caracter\u00edsticas do meio de propaga\u00e7\u00e3o, n\u00e3o dependendo\u00a0da frequ\u00eancia (f) nem do comprimento de onda\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Cambria Math, serif;\"><span style=\"font-size: medium;\"><b>\u0001<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>R- B<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\"><b>14-<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Princ\u00edpio de Huygens<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>\u00a0\u201c<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>todos os pontos de uma frente de onda podem ser considerados fontes de ondas secund\u00e0rias que se espalham em todas as dire\u00e7\u00f4es com uma velocidade igual \u00e0 de propaga\u00e7\u00e3o da onda.\u201d<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Com o\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>princ\u00edpio de Huygens podemos analisar a dire\u00e7\u00e3o de refra\u00e7\u00e3o\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>e reflex\u00e3o\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>da onda luz<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>. A\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>refra\u00e7\u00e3o \u00e9 um fen\u00f4meno em que a luz incide em um determinado meio e acaba desviando do seu curso natural com um determinado \u00e2ngulo, mudando assim a velocidade e frequ\u00eancia da onda.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Baseado no princ\u00edpio de\u00a0Huygens, podemos citar a lei de Snell-Descartes.<\/b><\/span><\/span><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/recentes-2019\/ondulatoria\/VROndulat\u00f3ria_html_3e7048c2.png\" width=\"775\" height=\"74\" name=\"Imagem 261\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>R- A<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial Black, serif;\"><span style=\"font-size: large;\"><b>15-<\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Eco<\/b><\/span><\/span><\/span><\/p>\n<p align=\"CENTER\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/fisicaevestibular.com.br\/novo\/wp-content\/uploads\/recentes-2019\/ondulatoria\/VROndulat\u00f3ria_html_4aafd56e.png\" width=\"773\" height=\"264\" name=\"Imagem 262\" align=\"BOTTOM\" border=\"0\" \/><\/p>\n<p><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>Veja na informa\u00e7\u00e3o acima se, para cada 0,1 s o afastamento deve ser de 17 m<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>, para\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>cada 0,3 s dever\u00e1 ser de d<\/b><\/span><\/span><\/span><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>\u00a0= 17\u00d73\u00a0<\/b><\/span><\/span><\/span><span style=\"color: #0000cc;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>= 51 m.<\/b><\/span><\/span><\/span><\/p>\n<p><span style=\"color: #c00000;\"><span style=\"font-family: Arial, serif;\"><span style=\"font-size: medium;\"><b>R- B<\/b><\/span><\/span><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Resolu\u00e7\u00e3o comentada \u2013 Vestibulares recentes \u2013 2018\/2018 Ondas 01- I. Correta Ondas mec\u00e2nicas Ondas mec\u00e2nicas\u00a0s\u00e3o aquelas\u00a0que necessitam\u00a0de um\u00a0meio material para se propagar, transportando energia.\u00a0 Exemplos: Ondas no mar (o meio \u00e9 a \u00e1gua),\u00a0ondas sonoras\u00a0(o meio pode ser ar, \u00e1gua, etc.),\u00a0ondas em uma corda\u00a0(o meio \u00e9 a corda),\u00a0etc. Todas essas perturba\u00e7\u00f5es s\u00e3o causadas em meios materiais. II. Falsa Ondas eletromagn\u00e9ticas Ondas<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":4903,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-4905","page","type-page","status-publish","hentry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/4905","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/comments?post=4905"}],"version-history":[{"count":1,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/4905\/revisions"}],"predecessor-version":[{"id":4906,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/4905\/revisions\/4906"}],"up":[{"embeddable":true,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/4903"}],"wp:attachment":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/media?parent=4905"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}