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The radius of curvature of a convex mirr...

The radius of curvature of a convex mirror is 60cm. When an object is A, its image is formed at B. If the size of image is half that of the object, then the distance between A and B is

A

30cm

B

60cm

C

45 cm

D

90 cm

Text Solution

Verified by Experts

The correct Answer is:
C

` f=(R/2)=30cm`
`1/(+x)+(1)/(-2x)=(1/(+30))`
`:. X=15cm`
Hence, `AB=3x=45cm`.
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