A concave mirror of focal length $f$ in air is dipped in a liquid of refractive index $\mu$. Its foc

Question

A concave mirror of focal length $f$ in air is dipped in a liquid of refractive index $\mu$. Its focal length in the liquid will be\

Professor PC Thomas Classes · Answer

(c) : The focal length of the mirror does not depend on the refractive index of the medium.