Question

A concave Mirror ond a convex lens are held
is water. What changes do you observe?​

Answer 1

Answer:

Focal length of any mirror does not depend on any medium. ... If refractive index of material of convex is less than that of water, then its focal length will become negative. it will act like concave lens.

Answer 2

Answer:

Answer. focal length of any mirror does not depend on any medium. ... If refractive index of material of convex is less than that of water, then its focal length will become negative. it will act like concave lens.