Multiple choice

Which of the following is the relation between the focal length and radius of curvature of a spherical mirror?

  1. R = f / 2

  2. R = 4 f

  3. f = R / 2

  4. f = 4 R

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

For spherical mirrors, the focal length f is defined as half the radius of curvature R. This relationship is expressed as f = R / 2.