Multiple choice general knowledge science & technology

If the focal length of a spherical mirror is 50 cm, then its radius of curvature is _______ cm

  1. 25

  2. 50

  3. 100

  4. 150
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

For spherical mirrors, the radius of curvature (R) is twice the focal length (f). This relationship comes from the geometry of the mirror: R = 2f. Given f = 50 cm, we have R = 2 × 50 = 100 cm.

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