{"id":4276,"date":"2018-12-23T13:26:52","date_gmt":"2018-12-23T13:26:52","guid":{"rendered":"http:\/\/fisicaevestibular.com.br\/novo\/?page_id=4276"},"modified":"2024-08-22T14:26:57","modified_gmt":"2024-08-22T14:26:57","slug":"ondulatoria-03-reflexao-e-refracao-de-ondas","status":"publish","type":"page","link":"https:\/\/fisicaevestibular.com.br\/novo\/formulario\/ondulatoria-03-reflexao-e-refracao-de-ondas\/","title":{"rendered":"Ondulat\u00f3ria 03 – Reflex\u00e3o e Refra\u00e7\u00e3o de Ondas"},"content":{"rendered":"

Formul\u00e1rio completo de F\u00edsica com informa\u00e7\u00f5es \u00fateis <\/b><\/span><\/span><\/span><\/p>\n

(Dicas para vestibulares)<\/b><\/span><\/span><\/span><\/p>\n

Ondulat\u00f3ria 03<\/b><\/span><\/span><\/span><\/p>\n

Reflex\u00e3o e Refra\u00e7\u00e3o de Ondas<\/b><\/span><\/span><\/span><\/p>\n

Reflex\u00e3o em meios unidimensionais<\/b><\/span><\/span><\/span><\/p>\n

<\/p>\n

Como determinar o formato das ondas circulares refletidas num obst\u00e1culo<\/b><\/span><\/span><\/span><\/p>\n

<\/p>\n

Como determinar o formato das ondas retas (planas) refletidas num obst\u00e1culo<\/b><\/span><\/span><\/span><\/p>\n

<\/p>\n

Refra\u00e7\u00e3o de ondas em meios unidimensionais<\/b><\/span><\/span><\/span><\/p>\n

A\u00a0densidade linear (\u00b5)\u00a0das cordas \u00e9 a\u00a0mesma,\u00a0ou seja,\u00a0\u00b5<\/b><\/span><\/span><\/span>1<\/b><\/span><\/span><\/sub><\/span>\u00a0= \u00b5<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sub><\/span>.<\/b><\/span><\/span><\/span><\/p>\n

<\/p>\n

A\u00a0densidade linear\u00a0da\u00a0primeira corda (\u00b5<\/b><\/span><\/span><\/span>1<\/b><\/span><\/span><\/sub><\/span>)\u00a0\u00e9\u00a0maior do que a da segunda (\u00b5<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sub><\/span>), ou seja,\u00a0\u00b5<\/b><\/span><\/span><\/span>1<\/b><\/span><\/span><\/sub><\/span>\u00a0>\u00a0\u00b5<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sub><\/span>.<\/b><\/span><\/span><\/span><\/p>\n

<\/p>\n

A\u00a0densidade linear\u00a0da\u00a0primeira corda (\u00b5<\/b><\/span><\/span><\/span>1<\/b><\/span><\/span><\/sub><\/span>)\u00a0\u00e9\u00a0menor\u00a0do que a da segunda (\u00b5<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sub><\/span>),\u00a0ou seja,\u00a0\u00b5<\/b><\/span><\/span><\/span>1<\/b><\/span><\/span><\/sub><\/span>\u00a0<\u00a0\u00b5<\/b><\/span><\/span><\/span>2<\/b><\/span><\/span><\/sub><\/span><\/p>\n

<\/p>\n

Refra\u00e7\u00e3o de ondas planas em meios bidimensionais<\/b><\/span><\/span><\/span><\/p>\n

<\/p>\n

Informa\u00e7\u00f5es \u00fateis <\/b><\/span><\/span><\/span>(dicas para vestibulares)<\/b><\/span><\/span><\/span><\/p>\n

<\/p>\n

Exemplos de reflex\u00e3o de ondas planas<\/b><\/span><\/span><\/span><\/p>\n

Nas figuras\u00a0<\/b><\/span><\/span><\/span>I, II, III e IV,<\/b><\/span><\/span><\/span>\u00a0<\/b><\/span><\/span><\/span>est\u00e3o representas as\u00a0<\/b><\/span><\/span><\/span>frentes de ondas retas (planas) que incidem<\/b><\/span><\/span><\/span><\/p>\n

em\u00a0<\/b><\/span><\/span><\/span>anteparos.<\/b><\/span><\/span><\/span>\u00a0Os\u00a0<\/b><\/span><\/span><\/span>sentidos\u00a0<\/b><\/span><\/span><\/span>de\u00a0<\/b><\/span><\/span><\/span>propaga\u00e7\u00e3o<\/b><\/span><\/span><\/span>\u00a0est\u00e3o <\/b><\/span><\/span><\/span>representados<\/b><\/span><\/span><\/span>\u00a0pelas\u00a0<\/b><\/span><\/span><\/span>setas.<\/b><\/span><\/span><\/span><\/p>\n

Esboce,<\/b><\/span><\/span><\/span>\u00a0em\u00a0<\/b><\/span><\/span><\/span>cada caso,<\/b><\/span><\/span><\/span>\u00a0as\u00a0<\/b><\/span><\/span><\/span>frentes de onda ap\u00f3s a reflex\u00e3o.<\/b><\/span><\/span><\/span><\/p>\n

<\/p>\n

<\/p>\n

<\/p>\n

<\/p>\n

Lembre-se de que <\/b><\/span><\/span><\/span>as\u00a0<\/b><\/span><\/span><\/span>ondas refletidas tem sempre a mesma velocidade de propaga\u00e7\u00e3o,\u00a0<\/b><\/span><\/span><\/span>a\u00a0<\/b><\/span><\/span><\/span>mesma frequ\u00eancia (da fonte)\u00a0<\/b><\/span><\/span><\/span>e o\u00a0<\/b><\/span><\/span><\/span>mesmo comprimento de onda.<\/b><\/span><\/span><\/span><\/p>\n

\u00a0<\/span><\/p>\n

<\/a> A\u00a0<\/b><\/span><\/span><\/span>frequ\u00eancia\u00a0<\/b><\/span><\/span><\/span>\u00e9\u00a0<\/b><\/span><\/span><\/span>caracter\u00edstica da fonte\u00a0<\/b><\/span><\/span><\/span>e\u00a0<\/b><\/span><\/span><\/span>independe do meio.\u00a0<\/b><\/span><\/span><\/span>Assim, por exemplo,\u00a0<\/b><\/span><\/span><\/span>se uma fonte luminosa emitir um feixe de luz azul (freq\u00fc\u00eancia 7.10<\/b><\/span><\/span><\/span>14<\/b><\/span><\/span><\/sup><\/span>\u00a0Hz),\u00a0<\/b><\/span><\/span><\/span>em qualquer meio que este\u00a0<\/b><\/span><\/span><\/span>feixe luminoso estiver se propagando ele sempre ser\u00e1 azul, pois ter\u00e1 sempre essa frequ\u00eancia.<\/b><\/span><\/span><\/span><\/p>\n

O mesmo \u00e9 v\u00e1lido para ondas.\u00a0<\/b><\/span><\/span><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Formul\u00e1rio completo de F\u00edsica com informa\u00e7\u00f5es \u00fateis (Dicas para vestibulares) Ondulat\u00f3ria 03 Reflex\u00e3o e Refra\u00e7\u00e3o de Ondas Reflex\u00e3o em meios unidimensionais Como determinar o formato das ondas circulares refletidas num obst\u00e1culo Como determinar o formato das ondas retas (planas) refletidas num obst\u00e1culo Refra\u00e7\u00e3o de ondas em meios unidimensionais A\u00a0densidade linear (\u00b5)\u00a0das cordas \u00e9 a\u00a0mesma,\u00a0ou seja,\u00a0\u00b51\u00a0= \u00b52. A\u00a0densidade linear\u00a0da\u00a0primeira corda (\u00b51)\u00a0\u00e9\u00a0maior<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":3987,"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-4276","page","type-page","status-publish","hentry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/4276","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=4276"}],"version-history":[{"count":1,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/4276\/revisions"}],"predecessor-version":[{"id":4277,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/4276\/revisions\/4277"}],"up":[{"embeddable":true,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/3987"}],"wp:attachment":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/media?parent=4276"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}