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在学习“光的传播”这一章内容时,许多参考资料上都例举了这样一个关于光的折射知识的问题:井口和深度相同的两口井,一口是枯井,一口是水井(水面在井口之下),两井底部各有一只青蛙,则()
In studying the chapter on “Light Propagation”, many reference materials have cited such a question concerning the knowledge of the refraction of light: two wells with the same wellhead and depth, one dry well and one well (water at the wellhead Below), there is a frog at the bottom of both wells, then ()