1. The problem statement, all variables and given/known data Imagine a fish in the lake. And assume that the surface of the water is absolutely flat--no waves at all. Draw a picture and describe what the fish should see. Can the fish see someone standing on the shore of the lake? 2. Relevant equations 3. The attempt at a solution I think that using the law of refraction I can solve this somehow, but I'm not really sure where to start. Could someone please help me out. Thank you.