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A real image of an object is formed at a...

A real image of an object is formed at a distance of 20 cm from a lens. On putting another lens in contact with it, the image is shifted 10 cm towards thed combination. The power of the lenses is

A

5 D

B

2.5 D

C

10 D

D

2 D

Text Solution

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The correct Answer is:
A
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