In which of the following, the image of an object placed at infinity will be highly diminished and point sized ?

Options

A. Concave mirror only
B. Convex mirror only
C. Convex lens ony
D. Concave mirror, convex mirror, concave lens and convex lens

Answer

D

Explanation

The incident rays which comes from an object placed at infinity will be parallel and the rays parallel to the principal axis, after reflection/refraction by concave mirror, convex mirror, concave lens and convex lens, will pass or appear to pass through the principal focus. Hence, image will be highly diminished and point sized.