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The relation between focal length f and ...

The relation between focal length `f` and radius of curvature `R` of a spherical mirror is.

A

`f=(R)/(2)`

B

`R=(f)/(2)`

C

`fR=2`

D

`f=(1)/(R)`

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • Choose the correct alternative. Radius of curvature of a spherical mirror is

    A
    Distance between centre of curvature and pole
    B
    distance between principal focus and pole.
    C
    half the focal length of the mirror.
    D
    distance between centre of curvature

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    A
    30 cm
    B
    60 cm
    C
    15cm
    D
    45 cm

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