1、小實(shí)驗(yàn)：玻璃不如白紙亮，你相信嗎？P.MsoNormalTEXT-JUSTIFY:inter-ideograph;FONT-SIZE:10.5pt;MARGIN:0cm0cm0pt;COLOR:windowtext;FONT-FAMILY:TimesNewRoman;TEXT-ALIGN:LI.MsoNormalTEXT-JUSTIFY:inter-ideograph;FONT-SIZE:10.5pt;MARGIN:0cm0cm0pt;COLOR:windowtext;FONT-FAMILY:TimesNewRoman;TEXT-ALIGN:DIV.MsoNormalTEXT-JUSTIFY:

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9、cm0cm0pt;COLOR:windowtext;FONT-FAMILY:TimesNewRoman;TEXT-ALIGN:DIV.MsoAcetateTEXT-JUSTIFY:inter-ideograph;FONT-SIZE:9pt;MARGIN:0cm0cm0pt;COLOR:windowtext;FONT-FAMILY:TimesNewRoman;TEXT-ALIGN:SPAN.text11COLOR:#4b5029;LETTER-SPACING:DIV.Section1page:OLMARGIN-BOTTOM:ULMARGIN-BOTTOM:0cm你準(zhǔn)備好了嗎？手電筒、平面鏡、白紙。馬上行動吧！1）在暗室里，桌上鋪一張白紙，把一小塊平面鏡平放在紙上。2）讓手電筒的光正對著平面鏡照射，從側(cè)面看去，白紙第4頁亮還是玻璃亮？問自己實(shí)驗(yàn)觀察的現(xiàn)象是什么？解析歸納實(shí)驗(yàn)現(xiàn)象，可以獲取的什么結(jié)論？請讓我來幫助你因?yàn)殓R面很圓滑，垂直入射到鏡面的光被垂直反射回去，射到其他方向的光極少，從側(cè)面看去，基本沒有光輝射入眼中，所以平面鏡看起來比較暗。而白紙表面粗糙反射光輝射到各個方向，所以從側(cè)面看到白紙比較亮。讀一讀，想一想該怎么走呢？一天夜晚，方才下過雨，路上出現(xiàn)