{"id":3312,"date":"2015-06-28T01:55:38","date_gmt":"2015-06-28T01:55:38","guid":{"rendered":"http:\/\/quiprocura.net\/w\/?post_type=portfolio&#038;p=3312"},"modified":"2017-07-27T15:03:57","modified_gmt":"2017-07-27T18:03:57","slug":"radiacao-eletromagnetica","status":"publish","type":"portfolio","link":"https:\/\/quiprocura.net\/w\/portfolio-item\/radiacao-eletromagnetica\/","title":{"rendered":"Radia\u00e7\u00e3o Eletromagn\u00e9tica"},"content":{"rendered":"<div  class='avia-builder-widget-area clearfix  avia-builder-el-0  el_before_av_image  avia-builder-el-first '><div id=\"text-35\" class=\"widget clearfix widget_text\">\t\t\t<div class=\"textwidget\"><h3>QuiProcura Qu\u00edmica<\/h3>\n<p><script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-5517334625230773\"\n     crossorigin=\"anonymous\"><\/script><br \/>\n<!-- anuncio superior --><br \/>\n<ins class=\"adsbygoogle\"\n     style=\"display:inline-block;width:728px;height:90px\"\n     data-ad-client=\"ca-pub-5517334625230773\"\n     data-ad-slot=\"3817602043\"><\/ins><br \/>\n<script>\n     (adsbygoogle = window.adsbygoogle || []).push({});\n<\/script><\/p>\n<\/div>\n\t\t<\/div><\/div>\n<div  class='avia-image-container  av-styling-    avia-builder-el-1  el_after_av_sidebar  el_before_av_two_third  avia-align-center '  itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\"  ><div class='avia-image-container-inner'><div class='avia-image-overlay-wrap'><img class='wp-image-6299 avia-img-lazy-loading-not-6299 avia_image' src='https:\/\/quiprocura.net\/w\/wp-content\/uploads\/2015\/06\/radiacao-solar-quiprocura-845x227.jpg' alt='' title='radiacao solar - quiprocura' height=\"227\" width=\"845\"  itemprop=\"thumbnailUrl\"  \/><\/div><\/div><\/div>\n<div class=\"flex_column av_two_third  flex_column_div av-zero-column-padding first  avia-builder-el-2  el_after_av_image  el_before_av_one_third  \" style='border-radius:0px; '><section class=\"av_textblock_section \"  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock  '   itemprop=\"text\" ><h1>radia\u00e7\u00e3o eletromagn\u00e9tica<\/h1>\n<p><b>Escrito por:<\/b> <span style=\"color: #000080;\"><a style=\"color: #000080;\" href=\"http:\/\/quiprocura.net\/w\/author\/miguel-medeiros\/\" target=\"_blank\" rel=\"noopener noreferrer\">Miguel A. Medeiros<\/a><\/span><br \/>\n<b>Revisado\u00a0em:<\/b> 27 de junho de 2015<\/p>\n<p><span style=\"font-family: Arial; font-size: small;\">Ondas de r\u00e1dio, TV, <a href=\"http:\/\/quiprocura.net\/w\/2015\/08\/24\/microondas-radiacao-eletromagnetica\/\" target=\"_blank\" rel=\"noopener noreferrer\">microondas<\/a>, <a href=\"http:\/\/quiprocura.net\/w\/portfolio-item\/ferro-de-passar-roupas-a-controle-remoto-a-presenca-do-infravermelho-no-cotidiano\/\">infravermelho<\/a>, laser, <a href=\"http:\/\/quiprocura.net\/w\/portfolio-item\/raio-x-quem-nunca\/\">raios-X<\/a>, raios \u03b3, ultravioleta e vis\u00edvel s\u00e3o consideradas <strong>radia\u00e7\u00f5es eletromagn\u00e9tica<\/strong>. No entanto, o que \u00e9 radia\u00e7\u00e3o eletromagn\u00e9tica?<\/span><\/p>\n<p><span style=\"font-family: Arial; font-size: small;\"><strong>Radia\u00e7\u00e3o eletromagn\u00e9tica<\/strong> \u00e9 a defini\u00e7\u00e3o dada \u00e0 ondas que se propagam no v\u00e1cuo ou no ar com velocidade de 300.000 km\/s, ou seja, com a velocidade da luz (c), que tamb\u00e9m \u00e9 uma radia\u00e7\u00e3o eletromagn\u00e9tica. Uma outra caracter\u00edstica das ondas eletromagn\u00e9ticas \u00e9 a capacidade de transportar energia e informa\u00e7\u00f5es.<\/span><\/p>\n<p><span style=\"font-family: Arial; font-size: small;\">Como dito anteriormente, existem v\u00e1rios tipos de <strong>radia\u00e7\u00e3o eletromagn\u00e9tica<\/strong>, ent\u00e3o o que as difere?<\/span><\/p>\n<p><span style=\"font-family: Arial; font-size: small;\">O que diferencia uma radia\u00e7\u00e3o eletromagn\u00e9tica da outra \u00e9 o seu comprimento de onda. Mas o que \u00e9 comprimento de onda?<\/span><\/p>\n<p><span style=\"font-family: Arial; font-size: small;\">Comprimento de onda (\u03bb) \u00e9 a dist\u00e2ncia entre dois pontos m\u00e1ximos de uma onda, observe:<\/span><\/p>\n<p align=\"center\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.quiprocura.net\/infraferro\/radeletro_arquivos\/image001.gif\" alt=\"\" width=\"298\" height=\"126\" border=\"0\" \/><\/p>\n<p><span style=\"font-family: Arial; font-size: small;\">Sendo assim, o comprimento de onda (\u03bb) de uma <strong>onda eletromagn\u00e9tica<\/strong> \u00e9 o que ir\u00e1 diferenci\u00e1-las. Existem ondas eletromagn\u00e9ticas com grandes comprimentos de onda, tais como: as ondas de r\u00e1dio (AM e FM) e TV (UHF e VHF). Por outro lado existem radia\u00e7\u00f5es com comprimento de onda bem pequeno, tais como: radia\u00e7\u00e3o-X e radia\u00e7\u00e3o \u03b3.<\/span><\/p>\n<p><span style=\"font-family: Arial; font-size: small;\">O fato do comprimento de onda ser grande ou pequeno influi na sua frequ\u00eancia (\u03bd), que \u00e9 a varia\u00e7\u00e3o da onda por segundo, ou seja, \u00e9 a \u201cvelocidade\u201d que a onda se propaga. Quanto menor for o comprimento de onda (\u03bb), maior ser\u00e1 a frequ\u00eancia (\u03bd) e, quanto maior for o comprimento de onda (\u03bb), menor ser\u00e1 a frequ\u00eancia (\u03bd).<\/span><\/p>\n<p><span style=\"font-family: Arial; font-size: small;\">Essa rela\u00e7\u00e3o pode ser observada a partir da equa\u00e7\u00e3o:<\/span><\/p>\n<p align=\"center\"><span style=\"font-family: Arial; font-size: small;\">\u03bd = c \/ \u03bb<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.quiprocura.net\/infraferro\/radeletro_arquivos\/image002.jpg\" alt=\"\" width=\"554\" height=\"119\" border=\"0\" \/><\/p>\n<p><span style=\"font-family: Arial; font-size: small;\">A rela\u00e7\u00e3o entre o comprimento de onda e a frequ\u00eancia pode ser tamb\u00e9m observada a partir do espectro eletromagn\u00e9tico, que mostra o crescimento da frequ\u00eancia e a diminui\u00e7\u00e3o do comprimento de onda.<\/span><\/p>\n<\/div><\/section><\/div>\n<div class=\"flex_column av_one_third  flex_column_div av-zero-column-padding   avia-builder-el-4  el_after_av_two_third  avia-builder-el-last  \" style='border-radius:0px; '><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"featured_media":6299,"comment_status":"closed","ping_status":"open","template":"","tags":[60,65,11,64,134,59,136,138],"portfolio_entries":[48],"class_list":["post-3312","portfolio","type-portfolio","status-publish","has-post-thumbnail","hentry","tag-bomba","tag-eletromagnetica","tag-quimica","tag-radiacao","tag-radio","tag-raio-x","tag-ultravioleta","tag-visivel","portfolio_entries-noticias"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - 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