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On the axis of a spherical mirror of foc...

On the axis of a spherical mirror of focal length `f` a short linear object of length `L` lies on the axis at a distance `mu` from the mirror. Its image has an axial length `L'` equal to

A

`L[(f)/(u - f)]^(1/2)`

B

`L[(u + f)/(f)]^(1/2)`

C

`L [(u - f)/(f)]^(2)`

D

`L[(f)/(u -f)]^(2)`

Text Solution

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The correct Answer is:
D
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