Question

A convex lens is placed in a medium in which it behaves like a glass plate. The refraction index of the medium, will be

(a) equal to refractive index of air

(b) more than the refractive index of glass

(c) equal to the refractive index of glass

(d) less than the refractive index of glass.

Answer 1

Correct option (c) equal to the refractive index of glass

Explanation:

A convex lens behaves like a glass plate when it is surrounded by medium which has refractive index equal to that of glass.