八年级物理上册3.4《探究光的折射规律》预习检测(新版)粤教沪版.doc

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1探究光的折射规律预习检测一.选择题1.下列四种现象中,由于光的折射形成的是( )A.河面上古镇的倒影 B.水杯中“折断”的笔C.阳光下树的影子 D.平面镜中小狗的像2.史记、梦溪笔谈中都有海市蜃楼的记载,宋代大诗人苏轼在登州海市中也描述过海市蜃楼的奇观。海市蜃楼现象的产生是由于( )A.光的折射 B.光的反射 C.光的直线传播 D.光的色散3.若入射角大于折射角,则光可能是( ) A.从水中斜射入空气中 B.从空气中斜射入水中 C.从水中垂直射向空气中 D.从空气中垂直射向水中 4.人看到水池里的月亮和鱼的像,它们的形成分别是哪种现象( ) A.都是折射现象 B.都是反射现象 C.前者是折射现象,后者是反射现象 D.前者是反射现象,后者是折射现象5.下面的图中,哪一幅图正确表示了光从空气进入水中的光路( )参考答案一.选择题1.B2.A3.B4.D5.C

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