{"id":3728,"date":"2018-02-13T17:51:12","date_gmt":"2018-02-13T17:51:12","guid":{"rendered":"http:\/\/fisicaevestibular.com.br\/novo\/?page_id=3728"},"modified":"2024-06-26T15:31:05","modified_gmt":"2024-06-26T15:31:05","slug":"optica-geometrica-espelhos-esfericos-2","status":"publish","type":"page","link":"https:\/\/fisicaevestibular.com.br\/novo\/enem\/optica-geometrica-espelhos-esfericos-2\/","title":{"rendered":"\u00d3ptica Geom\u00e9trica – Espelhos Esf\u00e9ricos (2)"},"content":{"rendered":"

\u00d3ptica Geom\u00e9trica<\/b><\/span><\/span><\/span><\/p>\n

Espelhos Esf\u00e9ricos (2)<\/b><\/span><\/span><\/span><\/p>\n

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

01- (ENEM-MEC)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Um grupo de cientistas liderado por pesquisadores do Instituto de Tecnologia da Calif\u00f3rnia (Caltech), nos Estados Unidos, construiu o primeiro metamaterial que apresentava valor negativo do \u00edndice de refra\u00e7\u00e3o relativo para a luz vis\u00edvel. <\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

\u00a0Denomina-se metamaterial um material \u00f3ptico artificial, tridimensional, formado por pequenas estruturas menores do que o comprimento de onda da luz, o que lhe d\u00e1 propriedades e comportamentos que n\u00e3o s\u00e3o encontrados em materiais naturais. Esse material tem sido chamado de \u201ccanhoto\u201d.<\/b><\/span><\/span><\/span><\/p>\n

Dispon\u00edvel em: http:\/\/www.inovacaotecnologica.com.br. Acesso em: 28 abr. 2010 (adaptado).<\/b><\/span><\/span><\/span><\/p>\n

Considerando o comportamento at\u00edpico desse metamaterial, qual \u00e9 a figura que representa a refra\u00e7\u00e3o da luz ao passar do ar para esse meio?<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Exerc\u00edcios com caracter\u00edsticas de ENEM<\/b><\/span><\/span><\/span><\/p>\n

02-(FGV-SP)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Um feixe luminoso de raios paralelos, que se propaga em um meio \u00f3ptico homog\u00eaneo, incide sobre uma superf\u00edcie que separa o primeiro meio de um segundo, passando a se propagar neste.<\/b><\/span><\/span><\/span><\/p>\n

Substituindo-se o segundo meio \u00f3ptico por um vidro fosco e transl\u00facido, e admitindo que os raios de<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

luz nele penetrem, estes perdem o paralelismo, podendo-se dizer que nessa situa\u00e7\u00e3o ocorreu uma<\/b><\/span><\/span><\/span><\/p>\n

a) reflex\u00e3o difusa.\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/b><\/span><\/span><\/span><\/p>\n

b) reflex\u00e3o regular.\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/b><\/span><\/span><\/span><\/p>\n

c) refra\u00e7\u00e3o difusa.\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/b><\/span><\/span><\/span><\/p>\n

d) refra\u00e7\u00e3o regular.\u00a0<\/b><\/span><\/span><\/span><\/p>\n

e) absor\u00e7\u00e3o difusa.\u00a0<\/b><\/span><\/span><\/span><\/p>\n

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

03-(UFMG-MG) \u00a0<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Um feixe de luz do Sol \u00e9 decomposto ao passar por um prisma de vidro. O feixe de luz vis\u00edvel resultante \u00e9 composto de ondas como:<\/b><\/span><\/span><\/span><\/p>\n

\u00a0a) apenas sete frequ\u00eancias que correspondem \u00e0s cores vermelha, alaranjada, amarela, verde, azul, anil e violeta.\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/b><\/span><\/span><\/span><\/p>\n

\u00a0b) apenas tr\u00eas frequ\u00eancias que correspodem \u00e0s core vermelha, amarela e azul.\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/b><\/span><\/span><\/span><\/p>\n

c) apenas tr\u00eas frequ\u00eancias que correspondem \u00e0s cores vermelha, verde e azul.\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/b><\/span><\/span><\/span><\/p>\n

d) uma infinidade de frequ\u00eancias que correspondem a cores \u00a0desde a vermelha at\u00e9 a violeta.<\/b><\/span><\/span><\/span><\/p>\n

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

04-(UFRGS)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Selecione a alternativa que substitui corretamente os n\u00fameros entre par\u00eanteses no par\u00e1grafo\u00a0 abaixo, na ordem\u00a0 em que eles aparecem. As cores que comp\u00f5em a luz branca podem ser visualizadas quando um feixe de luz, ao atravessar um prisma de vidro, sofre (1), separando-se nas cores do espectro vis\u00edvel.\u00a0<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

A luz de cor (2) \u00e9 a menos desviada na sua dire\u00e7\u00e3o de incid\u00eancia, e a de cor (3) \u00e9 a mais desviada de sua dire\u00e7\u00e3o de incid\u00eancia.<\/b><\/span><\/span><\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 (1)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 (2)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 (3)<\/b><\/span><\/span><\/span><\/p>\n

a) dispers\u00e3o\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 vermelha\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 violeta\u00a0\u00a0\u00a0\u00a0\u00a0<\/b><\/span><\/span><\/span><\/p>\n

b) dispers\u00e3o\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 violeta\u00a0\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0vermelha<\/b><\/span><\/span><\/span><\/p>\n

c) difra\u00e7\u00e3o\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 violeta\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 vermelha<\/b><\/span><\/span><\/span><\/p>\n

d) reflex\u00e3o\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 vermelha\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 violeta<\/b><\/span><\/span><\/span><\/p>\n

e) reflex\u00e3o \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0violeta\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 vermelha<\/b><\/span><\/span><\/span><\/p>\n

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

05-(UFSCAR-SP)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Durante o dia, uma pessoa dentro de casa olha atrav\u00e9s do vidro de uma janela e enxerga o que est\u00e1 do lado de fora. <\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

\u00c0 noite, a pessoa olha atrav\u00e9s da mesma janela e enxerga o interior da casa refletida pelo vidro, n\u00e3o enxergando o que est\u00e1 do lado de fora. Assinale a alternativa que melhor explica a situa\u00e7\u00e3o descrita.<\/b><\/span><\/span><\/span><\/p>\n

a) O \u00edndice de refra\u00e7\u00e3o da luz no meio externo \u00e0 janela \u00e9 maior \u00e0 noite do que durante o dia.<\/b><\/span><\/span><\/span><\/p>\n

b) O \u00edndice de refra\u00e7\u00e3o da luz no meio externo \u00e0 janela \u00e9 menor \u00e0 noite do que durante o dia.<\/b><\/span><\/span><\/span><\/p>\n

c) Durante o dia, a luz que atravessa o vidro da janela, proveniente dos objetos localizados no exterior da casa, \u00e9 muito mais intensa que a luz refletida pelo vidro da janela, proveniente dos objetos no interior da casa.<\/b><\/span><\/span><\/span><\/p>\n

d) Durante o dia, a polariza\u00e7\u00e3o da luz no vidro da janela \u00e9 positiva e permite que se enxergue o lado de fora.<\/b><\/span><\/span><\/span><\/p>\n

e) Durante a noite, a polariza\u00e7\u00e3o da luz no vidro da janela \u00e9 negativa e n\u00e3o permite que se enxergue o lado de fora.<\/b><\/span><\/span><\/span><\/p>\n

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

06-(UEL-PR)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

A partir do s\u00e9culo XIII, iniciando com o pensador Robert Grosseteste, os estudos em \u00f3ptica avan\u00e7aram sistem\u00e1tica\u00a0 positivamente, dando origem \u00e0s explica\u00e7\u00f5es cient\u00edficas a respeito das <\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

produ\u00e7\u00f5es de fen\u00f4menos e imagens, como \u00e9 o caso dos estudos sobre o Arco-\u00edris e as lentes. Sobre o fen\u00f4meno de forma\u00e7\u00e3o de Arco-\u00edris, considere as afirmativas a seguir.<\/b><\/span><\/span><\/span><\/p>\n

I. O Arco-\u00edris prim\u00e1rio \u00e9 causado por uma refra\u00e7\u00e3o e uma reflex\u00e3o dos raios de Sol nas gotas de chuva.<\/b><\/span><\/span><\/span><\/p>\n

II. O Arco-\u00edris aparece quando os raios de luz branca incidem em got\u00edculas de \u00e1gua presentes no ar e pode ocorrer naturalmente ou ser produzido artificialmente.<\/b><\/span><\/span><\/span><\/p>\n

III. O fen\u00f4meno Arco-\u00edris \u00e9 decorrente do processo de difra\u00e7\u00e3o da luz branca nas gotas de chuva.<\/b><\/span><\/span><\/span><\/p>\n

IV. A dispers\u00e3o dos raios de luz branca \u00e9 respons\u00e1vel pelo espectro de luzes coloridas que aparecem, por exemplo, pela passagem dessa luz por got\u00edculas de \u00e1gua.<\/b><\/span><\/span><\/span><\/p>\n

Est\u00e3o corretas apenas as afirmativas:<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

07-(CEFET-SP)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Durante o dia, quando um raio luminoso solar, atravessando a camada atmosf\u00e9rica, atinge a polu\u00edda cidade de S\u00e3o Paulo, sua trajet\u00f3ria prov\u00e1vel, devido ao fen\u00f4meno da refra\u00e7\u00e3o, \u00e9 descrita em uma das figuras a seguir. Assinale a alternativa que representa essa prov\u00e1vel trajet\u00f3ria.<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

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

08-(UEPB-PB)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Ao viajar num dia quente por uma estrada asfaltada, \u00e9 comum enxergarmos ao longe uma “po\u00e7a d\u2019 \u00e1gua”.\u00a0<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Sabemos que em dias de alta temperatura as camadas de ar, nas proximidades do solo, s\u00e3o\u00a0mais quentes que\u00a0as camadas superiores.<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Como explicamos essa miragem?<\/b><\/span><\/span><\/span><\/p>\n

a) Devido ao aumento de temperatura a luz sofre dispers\u00e3o.<\/b><\/span><\/span><\/span><\/p>\n

b) A densidade e o \u00edndice de refra\u00e7\u00e3o absoluto diminuem com o aumento da temperatura. Os raios\u00a0rasantes\u00a0incidentes do Sol alcan\u00e7am o \u00e2ngulo limite e h\u00e1 reflex\u00e3o total.<\/b><\/span><\/span><\/span><\/p>\n

c) Devido ao aumento de temperatura, ocorre refra\u00e7\u00e3o com desvio.<\/b><\/span><\/span><\/span><\/p>\n

d) Ocorre reflex\u00e3o simples devido ao aumento da temperatura.<\/b><\/span><\/span><\/span><\/p>\n

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

09-(UFJF-MG)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

O arco-\u00edris \u00e9 causado pela dispers\u00e3o da luz do Sol que sofre refra\u00e7\u00e3o e reflex\u00e3o pelas gotas de chuva (aproximadamente esf\u00e9ricas).<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Quando voc\u00ea v\u00ea um arco-\u00edris, o Sol est\u00e1:<\/b><\/span><\/span><\/span><\/p>\n

a) na sua frente.\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/b><\/span><\/span><\/span><\/p>\n

b) entre voc\u00ea e o arco-\u00edris.\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/b><\/span><\/span><\/span><\/p>\n

c) em algum lugar atr\u00e1s do arco-\u00edris.\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/b><\/span><\/span><\/span><\/p>\n

d) atr\u00e1s de voc\u00ea.<\/b><\/span><\/span><\/span><\/p>\n

e) em qualquer lugar, pois n\u00e3o importa a posi\u00e7\u00e3o do Sol.<\/b><\/span><\/span><\/span><\/p>\n

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

10-(PUC-RJ)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Um feixe de luz de comprimento de onda de 600 nm se propaga no ar at\u00e9 atingir a superf\u00edcie de uma placa de vidro. <\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Sabendo- se que o \u00edndice de refra\u00e7\u00e3o do vidro \u00e9 n = 1,5 e que a velocidade de propaga\u00e7\u00e3o da luz no ar e no v\u00e1cuo \u00e9 de c=3 x 10<\/b><\/span><\/span><\/span>8<\/b><\/span><\/span><\/sup><\/span>\u00a0m\/s, o comprimento de onda e a velocidade de propaga\u00e7\u00e3o da onda no vidro em nm e m\/s, respectivamente, s\u00e3o:<\/b><\/span><\/span><\/span><\/p>\n

(Obs: 1 nm = 1.10<\/b><\/span><\/span><\/span>-9<\/b><\/span><\/span><\/sup><\/span>\u00a0m).<\/b><\/span><\/span><\/span><\/p>\n

a) 200 nm ; 4.10<\/b><\/span><\/span><\/span>-8<\/b><\/span><\/span><\/sup><\/span>\u00a0m\/s \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/b><\/span><\/span><\/span><\/p>\n

b) 200 nm ; 3.10<\/b><\/span><\/span><\/span>-8<\/b><\/span><\/span><\/sup><\/span>\u00a0m\/s\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/b><\/span><\/span><\/span><\/p>\n

c) 200 nm ; 2.10<\/b><\/span><\/span><\/span>-8<\/b><\/span><\/span><\/sup><\/span>\u00a0m\/s \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/b><\/span><\/span><\/span><\/p>\n

d) 400 nm ; 1.10<\/b><\/span><\/span><\/span>-8<\/b><\/span><\/span><\/sup><\/span>\u00a0m\/s<\/b><\/span><\/span><\/span><\/p>\n

e) 400 nm ; 2.10<\/b><\/span><\/span><\/span>-8<\/b><\/span><\/span><\/sup><\/span>\u00a0m\/s<\/b><\/span><\/span><\/span><\/p>\n

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

11-(CEFET-MG)<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

\u00a0A dura\u00e7\u00e3o do dia terrestre \u00e9 ligeiramente ____________ devido a___________ da luz solar na atmosfera.<\/b><\/span><\/span><\/span><\/p>\n

Os termos que completam, corretamente, as lacunas s\u00e3o<\/b><\/span><\/span><\/span><\/p>\n

a) menor, reflex\u00e3o.\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/b><\/span><\/span><\/span><\/p>\n

b) maior, difra\u00e7\u00e3o.\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/b><\/span><\/span><\/span><\/p>\n

c) maior, refra\u00e7\u00e3o.\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/b><\/span><\/span><\/span><\/p>\n

d) menor, absor\u00e7\u00e3o.<\/b><\/span><\/span><\/span><\/p>\n

e) maior, interfer\u00eancia.<\/b><\/span><\/span><\/span><\/p>\n

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

12-(UNESP-SP)<\/b><\/span><\/span><\/span><\/p>\n

\"\u00d3ptica\"<\/p>\n

Um raio de luz monocrom\u00e1tica incide sobre a superf\u00edcie plana de um bloco de vidro de tal modo que o raio refletido R forma um \u00e2ngulo de 90<\/b><\/span><\/span><\/span>o<\/b><\/span><\/span><\/sup><\/span>\u00a0com o raio refratado r. O \u00e2ngulo entre o raio incidente I e a superf\u00edcie de separa\u00e7\u00e3o dos dois meios mede 32<\/b><\/span><\/span><\/span>o<\/b><\/span><\/span><\/sup><\/span>, como mostra a figura.<\/b><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Os \u00e2ngulos de incid\u00eancia e de refra\u00e7\u00e3o medem respectivamente:<\/b><\/span><\/span><\/span><\/p>\n

a) 23<\/b><\/span><\/span><\/span>o<\/b><\/span><\/span><\/sup><\/span>\u00a0e 42<\/b><\/span><\/span><\/span>o<\/b><\/span><\/span><\/sup><\/span>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/b><\/span><\/span><\/span><\/p>\n

b) 58<\/b><\/span><\/span><\/span>o<\/b><\/span><\/span><\/sup><\/span>\u00a0e 32<\/b><\/span><\/span><\/span>o<\/b><\/span><\/span><\/sup><\/span>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/b><\/span><\/span><\/span><\/p>\n

c) 33<\/b><\/span><\/span><\/span>o<\/b><\/span><\/span><\/sup><\/span>\u00a0e 44<\/b><\/span><\/span><\/span>o<\/b><\/span><\/span><\/sup><\/span>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/b><\/span><\/span><\/span><\/p>\n

d) 45<\/b><\/span><\/span><\/span>o<\/b><\/span><\/span><\/sup><\/span>\u00a0e 42<\/b><\/span><\/span><\/span>o<\/b><\/span><\/span><\/sup><\/span>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/b><\/span><\/span><\/span><\/p>\n

e) 27<\/b><\/span><\/span><\/span>o<\/b><\/span><\/span><\/sup><\/span>\u00a0e 52<\/b><\/span><\/span><\/span>o<\/b><\/span><\/span><\/sup><\/span>\u00a0\u00a0\u00a0\u00a0\u00a0<\/b><\/span><\/span><\/span><\/p>\n

 <\/p>\n

Confira a resolu\u00e7\u00e3o comentada<\/span><\/a><\/h3>\n

 <\/p>\n

Clique aqui para ver sobre o tema!<\/a><\/p>\n

Confira as v\u00eddeo aulas!<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

\u00d3ptica Geom\u00e9trica Espelhos Esf\u00e9ricos (2) \u00a0 01- (ENEM-MEC) Um grupo de cientistas liderado por pesquisadores do Instituto de Tecnologia da Calif\u00f3rnia (Caltech), nos Estados Unidos, construiu o primeiro metamaterial que apresentava valor negativo do \u00edndice de refra\u00e7\u00e3o relativo para a luz vis\u00edvel. \u00a0Denomina-se metamaterial um material \u00f3ptico artificial, tridimensional, formado por pequenas estruturas menores do que o comprimento de onda<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":3575,"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-3728","page","type-page","status-publish","hentry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/3728","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=3728"}],"version-history":[{"count":4,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/3728\/revisions"}],"predecessor-version":[{"id":9814,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/3728\/revisions\/9814"}],"up":[{"embeddable":true,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/3575"}],"wp:attachment":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/media?parent=3728"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}