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Q.

A rod 1.5 m long is placed along the principal axis of a convex mirror of focal length 60cm. The near end of the rod is 1m from the pole of the convex mirror. The length of the image of the rod formed to the nearest integer is ....... cm

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answer is 11.

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Detailed Solution

f=+60 cm u1=-100 cm v1=60016 u2=-250 cm v2=150031 Image length = v2-v1

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