NDA2020General AbilityGeneral ScienceActual

The correct relation between the radius of curvature R and focal length f of a spherical mirror is

Options

AR=f
BR=2 f
CR=3 f
DR=4 f

Correct answer

B. R=2 f

Step-by-step solution

The correct relation between the radius of curvature R and focal length f of a spherical mirror is given by formula R =2 f as the focal length of a spherical mirror is half of its radius of curvature.

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