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高中物理教材中,做水波的传播、干涉和衍射演示实验。利用家庭用的半透明塑料提水桶做该实验,简单方便、效果明显。具体做法如下: 把半透明塑料水桶,注满清水后放在桌子上,让太阳光(或电灯光)斜射,使水的表面正好投影在桶壁上。为了防止波的反射,在水桶口内周围衬上一层海绵。一、演示水波的传播把一根筷子(最好头子要削尖)或铅笔尖子,右手
In high school physics textbooks, demonstration experiments were conducted on the propagation, interference, and diffraction of water waves. The use of home-use translucent plastic water buckets for this experiment is simple, convenient, and effective. The specifics are as follows: Put a translucent plastic bucket, fill it with clear water, and place it on a table so that sunlight (or electric light) will be inclined so that the surface of the water is projected on the wall of the bucket. In order to prevent wave reflections, a layer of sponge is placed around the mouth of the bucket. 1. Demonstrate the spread of water waves. Put a chopstick (best head to be sharpened) or pencil tip, right hand