If you wish to hit a blue fish with a red laser beam, you should compensate for refraction between the air and water by aiming your laser
A) above the sighted fish.
B) below the sighted fish.
C) directly at the sighted fish.

Question

Quizplus · Accepted Answer

When light passes from air into water, it slows down and bends towards the normal due to refraction. This bending makes the fish appear closer to the surface than it actually is. Therefore, to compensate for this effect, you should aim the laser below the sighted position of the fish to hit it accurately.

If You Wish to Hit a Blue Fish with a Red