A plane wave passes through a convex lens. The geometrical shape of the wavefront that emerges is

Question

A plane wave passes through a convex lens. The geometrical shape of the wavefront that emerges is (A) plane (B) diverging spherical (C) converging spherical (D) none of these

Tardigrade Admin · Accepted Answer

A convex lens is a converging lens. As the wave passes through the lens, they get converged towards the focus. So, the wavefront will be of the shape of converging spherical surfaces as the wave is refracted from the lens.

Q. A plane wave passes through a convex lens. The geometrical shape of the wavefront that emerges is

plane

diverging spherical

converging spherical

none of these

A convex lens is a converging lens. As the wave passes through the lens, they get converged towards the focus. So, the wavefront will be of the shape of converging spherical surfaces as the wave is refracted from the lens.