Question

If a fish is trying to capture an insect hovering above the surface of the water – how will it jump to catch it? Will it aim above or below what it sees? Explain what this question is saying.

Answer 1

It will have aim at a point "below" the insect.

From the insect's point of view, the fish will appear to be shallower than it actually is because a ray of light from the insect to the fish will be bent "towards" the normal when the ray enters the water