下列属于光的反射现象的是A.平静湖面上呈现山的倒影B.月光下的人影C.在岸边观看水中游动的鱼D.用放大镜看地图
试题**:即A试题解析:分析:解答此题要从以下知识点入手:①平面镜成像,成因是光的反射.来自②光的折射现象.由物体发出的光透过不同介质时,会发生折射,使光路发生改变,因此我们看到...
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在观看河岸边的城市夜景时,往往发现每盏灯在水里的像不是一盏灯,而是一条光柱,请你分析这是为什么。
在观看河岸边的城市夜景,发现每盏灯在水里是一条光柱,这是与平面镜有关。平面镜能改360问答变光的传播路线,但参天不能改变光束性质念,即入射光分别是平行光束、汇聚光束、发散光束等光...
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人们在海湾观看美丽的夜景时,往往发现岸边的灯在水里的像是一条长长的光柱.请解释这个现接跑查服零纸象.
试题答案:这是因为河面总有水波起伏,像许多取向养松府不同的平面镜,电灯在每一个**面镜内都能成像,但各个像的位置高低不同,这些像组合起来就形成一条光柱.
关于冬季的比喻句大全(短)小学生四年级上册中文
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