search
arrow-left Previous
Next arrow-right
Q: The distance between the pole and the centre of curvature of a given concave mirror of focal length 0.5 m is:
  • A. 1.0 m
  • B. 0.75 m
  • C. 0.5 m
  • D. 0.25 m
Correct Answer: Option A - The distance between the pole and the centre of curvature is called as radius of curvature. The radius of curvature is found to be equal to twice the focal length. We put this as R = 2f or R = 2 × 0.5 m[According to question] = 1 m
A. The distance between the pole and the centre of curvature is called as radius of curvature. The radius of curvature is found to be equal to twice the focal length. We put this as R = 2f or R = 2 × 0.5 m[According to question] = 1 m

Explanations:

The distance between the pole and the centre of curvature is called as radius of curvature. The radius of curvature is found to be equal to twice the focal length. We put this as R = 2f or R = 2 × 0.5 m[According to question] = 1 m