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A convergent beam of light converges to ...

A convergent beam of light converges to a point `20 cm` behind the convex mirrorr on the principal axis.An inverted image of the same size is formed coincident with the virtual object. Then, the focal length of the convex mirrorr is

A

infinite

B

40 cm

C

20 cm

D

10 cm

Text Solution

Verified by Experts

The correct Answer is:
A
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