Multiple choice

Which of the following mirror has a real principal focus?

  1. Concave mirror

  2. Convex mirror

  3. Plane mirror

  4. None of these

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A concave mirror converges light rays to a single point in front of the mirror, which is a real principal focus. Convex and plane mirrors form virtual foci behind the mirror surface.