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Two lenses of powers + 1.5 D and - 1 D a...

Two lenses of powers + 1.5 D and - 1 D are kept in contact. The focal length of the combination is

A

`0.2 m`

B

`0.5 m`

C

`0.02 m`

D

2m

Text Solution

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The correct Answer is:
D
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