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Two lenses are placed in contact with ea...

Two lenses are placed in contact with each other and the focal length of combination is `80 cm`. If the focal length of one is `20 cm`, then the power of the other will be

A

`1.66 D`

B

`4.00 D`

C

`-1.00 D`

D

`-3.75 D`

Text Solution

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The correct Answer is:
D
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