Consider the following:

  1. Convex lens
  2. Concave lens
  3. Concave mirror
  4. Convex mirror
  5. Plane mirror

Which of the above can form a real image of a real object?

Answer: [B] Only 1 & 3

Concave lens cannot form a real image of a real object. Similarly, Plane mirrors and convex mirrors can not form a real image of a real object.

This question is a part of GKToday's Integrated IAS General Studies Module