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At what distance from a convex mirror of...

At what distance from a convex mirror of focal length 2.5 m should a body stand so that his image has a height equal to half the original height ? The principal exis is perpendicular to the height.

A

2.5 m from the mirror

B

5 m from the mirror

C

7.5 m from the mirror

D

10 m from the mirror

Text Solution

Verified by Experts

The correct Answer is:
A
`m=v/u=1/2,1/f=1/u+1/v`
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