Question

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Answer 1

Answer:

here is your answer

Explanation:

we know, power of a lens is reciprocal of its focal length. hence, focal length of convex lens should be 20cm, if power of it is 5D. ... An object 5.0 cm in length is placed at a distance of 20cm in front of a convex mirror of radius of curvature 30cm

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Answer 2

Answer:

here is your answer

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