{"id":2451,"date":"2016-09-11T00:56:04","date_gmt":"2016-09-11T00:56:04","guid":{"rendered":"http:\/\/fisicaevestibular.com.br\/novo\/?page_id=2451"},"modified":"2024-08-23T15:12:12","modified_gmt":"2024-08-23T15:12:12","slug":"resolucao-comentada-dos-exercicios-de-vestibulares-sobre-polarizacao-e-ressonancia-de-ondas","status":"publish","type":"page","link":"https:\/\/fisicaevestibular.com.br\/novo\/ondulatoria\/ondas\/polarizacao-e-ressonancia-de-ondas\/resolucao-comentada-dos-exercicios-de-vestibulares-sobre-polarizacao-e-ressonancia-de-ondas\/","title":{"rendered":"Polariza\u00e7\u00e3o e Resson\u00e2ncia de ondas – Resolu\u00e7\u00e3o"},"content":{"rendered":"

Resolu\u00e7\u00e3o comentada dos exerc\u00edcios de vestibulares sobre<\/b><\/span><\/span><\/span>\u00a0<\/b><\/span><\/span><\/span><\/p>\n

Polariza\u00e7\u00e3o e Resson\u00e2ncia de ondas<\/b><\/span><\/span><\/span><\/p>\n

01-<\/b><\/span><\/span><\/span><\/span> <\/b>E<\/b><\/span><\/span><\/span><\/span><\/p>\n

02-<\/b><\/span><\/span><\/span><\/span> <\/b>B<\/b><\/span><\/span><\/span><\/span><\/p>\n

03-<\/b><\/span><\/span><\/span><\/span> <\/b>D<\/b><\/span><\/span><\/span><\/span><\/p>\n

05-<\/b><\/span><\/span><\/span><\/span>\u00a0<\/b><\/span><\/span><\/span><\/span>R: C. A luz, ao sofrer reflex\u00e3o em placas de vidro ou po\u00e7as de \u00e1gua, fica polarizada. Os filtros polar\u00f3ides das m\u00e1quinas fotogr\u00e1ficas n\u00e3o permitem a passagem da luz refletida polarizada eliminando assim, os reflexos. Portanto, foi eliminada a luz refletida pelo vidro, que est\u00e1 polarizada.<\/b><\/span><\/span><\/span><\/p>\n

06-<\/b><\/span><\/span><\/span> <\/b>A<\/b><\/span><\/span><\/span><\/p>\n

07-<\/b><\/span><\/span><\/span> <\/b>D<\/b><\/span><\/span><\/span><\/p>\n

08-<\/b><\/span><\/span><\/span> <\/b>D<\/b><\/span><\/span><\/span><\/p>\n

09-<\/b><\/span><\/span><\/span> <\/b>C<\/b><\/span><\/span><\/span><\/p>\n

10-<\/b><\/span><\/span><\/span> <\/b>A<\/b><\/span><\/span><\/span><\/p>\n

11-<\/b><\/span><\/span><\/span> <\/b>C<\/b><\/span><\/span><\/span><\/p>\n

12-<\/b><\/span><\/span><\/span> <\/b>E<\/b><\/span><\/span><\/span><\/p>\n

13-<\/b><\/span><\/span><\/span> <\/b>R- D\u00a0 —\u00a0 veja teoria<\/b><\/span><\/span><\/span><\/p>\n

14-<\/b><\/span><\/span><\/span>\u00a0<\/b><\/span><\/span><\/span>Observe na figura que\u00a0<\/b><\/span><\/span><\/span>\u03bb<\/b><\/span><\/span><\/span><\/span>\/2=3\u00a0 —\u00a0\u00a0<\/b><\/span><\/span><\/span>\u03bb<\/b><\/span><\/span><\/span><\/span>=6m\u00a0 —\u00a0 equa\u00e7\u00e3o fundamental da ondulat\u00f3ria\u00a0 —\u00a0 V=c=\u00a0<\/b><\/span><\/span><\/span>\u03bb<\/b><\/span><\/span><\/span><\/span>f\u00a0 —\u00a0 3.10<\/b><\/span><\/span><\/span>8<\/b><\/span><\/span><\/sup><\/span>=6f\u00a0 —\u00a0 f=0,5.10<\/b><\/span><\/span><\/span>8<\/b><\/span><\/span><\/sup><\/span>Hz\u00a0\u00a0—\u00a0 f=50.10<\/b><\/span><\/span><\/span>6<\/b><\/span><\/span><\/sup><\/span>Hz\u00a0 —\u00a0 f=50MHz\u00a0 —\u00a0 observe que a polariza\u00e7\u00e3o ocorre no plano YZ, ou seja, \u00e9 vertical\u00a0 —\u00a0 R- A<\/b><\/span><\/span><\/span><\/p>\n

15-<\/b><\/span><\/span><\/span>\u00a0<\/b><\/span><\/span><\/span>Justificativa da falsa que \u00e9 a 16) \u00a0—\u00a0 reverbera\u00e7\u00e3o \u00e9 a confus\u00e3o de sons que chegam aos nossos ouvidos em tempos diferentes, (essa afirma\u00e7\u00e3o est\u00e1 correta) em virtude de que cada frequ\u00eancia de onda apresenta velocidades diferentes.<\/b><\/span><\/span><\/span>\"\"<\/p>\n

(essa justificativa est\u00e1 errada)\u00a0 —\u00a0 a confus\u00e3o ocorre porque os sons foram emitidos em tempos diferentes, ou porque percorreram trajet\u00f3rias diferentes, por\u00e9m com a mesma velocidade, porque se propagam no mesmo meio.<\/b><\/span><\/span><\/span><\/p>\n

R- (01 + 02 + 04 + 08) = 15<\/b><\/span><\/span><\/span><\/span><\/p>\n

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

 <\/p>\n

Voltar para os exerc\u00edcios<\/span><\/a>
\n<\/span><\/h3>\n","protected":false},"excerpt":{"rendered":"

Resolu\u00e7\u00e3o comentada dos exerc\u00edcios de vestibulares sobre\u00a0 Polariza\u00e7\u00e3o e Resson\u00e2ncia de ondas 01- E 02- B 03- D 05-\u00a0R: C. A luz, ao sofrer reflex\u00e3o em placas de vidro ou po\u00e7as de \u00e1gua, fica polarizada. Os filtros polar\u00f3ides das m\u00e1quinas fotogr\u00e1ficas n\u00e3o permitem a passagem da luz refletida polarizada eliminando assim, os reflexos. Portanto, foi eliminada a luz refletida pelo<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":2447,"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-2451","page","type-page","status-publish","hentry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/2451","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=2451"}],"version-history":[{"count":3,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/2451\/revisions"}],"predecessor-version":[{"id":10923,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/2451\/revisions\/10923"}],"up":[{"embeddable":true,"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/pages\/2447"}],"wp:attachment":[{"href":"https:\/\/fisicaevestibular.com.br\/novo\/wp-json\/wp\/v2\/media?parent=2451"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}