{"id":4282,"date":"2018-12-23T13:32:38","date_gmt":"2018-12-23T13:32:38","guid":{"rendered":"http:\/\/fisicaevestibular.com.br\/novo\/?page_id=4282"},"modified":"2024-08-22T14:29:43","modified_gmt":"2024-08-22T14:29:43","slug":"ondulatoria-06-difracao-e-dispersao-de-ondas","status":"publish","type":"page","link":"https:\/\/fisicaevestibular.com.br\/novo\/formulario\/ondulatoria-06-difracao-e-dispersao-de-ondas\/","title":{"rendered":"Ondulat\u00f3ria 06 – Difra\u00e7\u00e3o e Dispers\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 06<\/b><\/span><\/span><\/span><\/p>\n

Difra\u00e7\u00e3o e Dispers\u00e3o de ondas<\/b><\/span><\/span><\/span><\/p>\n

Difra\u00e7\u00e3o<\/b><\/span><\/span><\/span><\/p>\n

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Princ\u00edpio de Huygens<\/b><\/span><\/span><\/span><\/p>\n

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Dispers\u00e3o Luminosa<\/b><\/span><\/span><\/span><\/p>\n

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

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No v\u00e1cuo\u00a0<\/b><\/span><\/span><\/span>e,\u00a0<\/b><\/span><\/span><\/span>aproximadamente no ar,\u00a0<\/b><\/span><\/span><\/span>de\u00a0<\/b><\/span><\/span><\/span>\u00edndice de refra\u00e7\u00e3o absoluto n = 1, todas as cores\u00a0<\/b><\/span><\/span><\/span>(frequ\u00eancias) se\u00a0<\/b><\/span><\/span><\/span>movem com a mesma velocidade (3,0.10<\/b><\/span><\/span><\/span>8<\/b><\/span><\/span><\/sup><\/span>m\/s) e\u00a0<\/b><\/span><\/span><\/span>por essa raz\u00e3o\u00a0<\/b><\/span><\/span><\/span>est\u00e3o sempre juntas, formando a luz policrom\u00e1tica branca.\u00a0<\/b><\/span><\/span><\/span><\/p>\n

\u00a0O\u00a0<\/b><\/span><\/span><\/span>\u00edndice de refra\u00e7\u00e3o absoluto de um meio \u00e9 fun\u00e7\u00e3o da frequ\u00eancia\u00a0<\/b><\/span><\/span><\/span>(cor) da\u00a0<\/b><\/span><\/span><\/span>radia\u00e7\u00e3o luminosa\u00a0<\/b><\/span><\/span><\/span>que o\u00a0<\/b><\/span><\/span><\/span>atravessa,<\/b><\/span><\/span><\/span>\u00a0do\u00a0<\/b><\/span><\/span><\/span>comprimento de onda da mesma, e de sua velocidade de propaga\u00e7\u00e3o nesse meio.<\/b><\/span><\/span><\/span><\/p>\n

Assim, como a\u00a0<\/b><\/span><\/span><\/span>luz branca \u00e9 composta de infinitas freq\u00fc\u00eancias (cores),\u00a0cada uma delas, num meio com \u00edndice de refra\u00e7\u00e3o diferente que o do v\u00e1cuo e do ar, se move com velocidades diferentes e sofre desvios diferentes.<\/b><\/span><\/span><\/span><\/p>\n

O menor desvio \u00e9 o do vermelho e o maior \u00e9 o do violeta.<\/b><\/span><\/span><\/span><\/p>\n

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A\u00a0<\/b><\/span><\/span><\/span>luz branca \u00e9 composta por infinitas cores\u00a0<\/b><\/span><\/span><\/span>(frequ\u00eancias) e\u00a0<\/b><\/span><\/span><\/span>n\u00e3o existe o azul nem o vermelho, mas sim uma determinada faixa de freq\u00fc\u00eancias em que cada cor predomina.<\/b><\/span><\/span><\/span><\/p>\n

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A\u00a0<\/b><\/span><\/span><\/span>figura\u00a0<\/b><\/span><\/span><\/span>representa,\u00a0<\/b><\/span><\/span><\/span>esquematicamente,<\/b><\/span><\/span><\/span>\u00a0<\/b><\/span><\/span><\/span>a trajet\u00f3ria de um feixe de luz branca atravessando<\/b><\/span><\/span><\/span>\u00a0uma\u00a0<\/b><\/span><\/span><\/span>gota de\u00a0\u00e1gua<\/b><\/span><\/span><\/span>. \u00c9\u00a0<\/b><\/span><\/span><\/span>dessa forma<\/b><\/span><\/span><\/span>\u00a0que se\u00a0<\/b><\/span><\/span><\/span>origina<\/b><\/span><\/span><\/span>\u00a0o <\/b><\/span><\/span><\/span>arco-\u00edris.<\/b><\/span><\/span><\/span><\/p>\n

Em\u00a0<\/b><\/span><\/span><\/span>1 ocorre o fen\u00f4meno\u00a0<\/b><\/span><\/span><\/span>\u00f3ptico da\u00a0<\/b><\/span><\/span><\/span>refra\u00e7\u00e3o,<\/b><\/span><\/span><\/span>\u00a0em\u00a0<\/b><\/span><\/span><\/span>2 da reflex\u00e3o\u00a0<\/b><\/span><\/span><\/span>e, em\u00a0<\/b><\/span><\/span><\/span>3\u00a0<\/b><\/span><\/span><\/span>novamente da\u00a0<\/b><\/span><\/span><\/span>refra\u00e7\u00e3o.<\/b><\/span><\/span><\/span><\/p>\n

A\u00a0<\/b><\/span><\/span><\/span>decomposi\u00e7\u00e3o da luz branca\u00a0<\/b><\/span><\/span><\/span>(dispers\u00e3o)<\/b><\/span><\/span><\/span>\u00a0ocorre\u00a0<\/b><\/span><\/span><\/span>entre 1 e 2 e entre 2 e 3<\/b><\/span><\/span><\/span>\u00a0e\u00a0<\/b><\/span><\/span><\/span>sua causa \u00e9 devido ao fato de o \u00edndice de refra\u00e7\u00e3o absoluto da \u00e1gua da gota ser diferente para cada frequ\u00eancia (cor) da luz, o que provoca em cada uma desvios diferentes, separando-as.<\/b><\/span><\/span><\/span><\/p>\n

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

<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Formul\u00e1rio completo de F\u00edsica com informa\u00e7\u00f5es \u00fateis (Dicas para vestibulares) Ondulat\u00f3ria 06 Difra\u00e7\u00e3o e Dispers\u00e3o de ondas Difra\u00e7\u00e3o Princ\u00edpio de Huygens Dispers\u00e3o Luminosa Informa\u00e7\u00f5es \u00fateis (dicas para vestibulares) No v\u00e1cuo\u00a0e,\u00a0aproximadamente no ar,\u00a0de\u00a0\u00edndice de refra\u00e7\u00e3o absoluto n = 1, todas as cores\u00a0(frequ\u00eancias) se\u00a0movem com a mesma velocidade (3,0.108m\/s) e\u00a0por essa raz\u00e3o\u00a0est\u00e3o sempre juntas, formando a luz policrom\u00e1tica branca.\u00a0 \u00a0O\u00a0\u00edndice de refra\u00e7\u00e3o<\/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-4282","page","type-page","status-publish","hentry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/4282","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=4282"}],"version-history":[{"count":2,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/4282\/revisions"}],"predecessor-version":[{"id":10772,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/4282\/revisions\/10772"}],"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=4282"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}