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

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  1. R = f
  2. R = 2f
  3. R = 3f
  4. R = 4f

Answer (Detailed Solution Below)

Option 2 : R = 2f
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CONCEPT:

  • spherical mirror is a mirror whose reflecting surface is a part of a hollow sphere of glass.
  • One side of the mirror is well polished and reflecting, and another side of the mirror is opaque (often painted red).
  • Spherical mirrors are of two types - Convex mirror, and Concave mirror.
    • The image formed by the spherical mirrors depends on the position of the object.

3QID 6 May 2019  Gaurav Sharma Deepak 3dgfd

EXPLANATION:

  • The relationship between the focal length (f) and the radius of curvature (R) is given by -

\(⇒ f = \frac{R}{2}\)

⇒ R = 2f

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