Question

A concave mirror brings the sun's rays to a focus in front of the mirror. Suppose the mirror is submerged in a swimming pool but still pointed up at the sun. Part A Will the sun's rays be focused nearer to, farther from, or at the same distance from the mirror? Explain.

Answer 1

The sun rays will be focused at the same distance from the mirror.

Step-by-step explanation:

Laws of reflection do not depend on the refractive index n any form. Hence, the sun’s rays will be focused the same distance from the mirror.