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The power of lens is P=1/(f') where f is...

The power of lens is `P=1/(f')` where `f` is focal length of the lens. The dimensions of power of lens is

A

`[LT^(-2)]`

B

`[M^(0)L^(-1)T^(0)]`

C

`[M^(0)L^(0)T^(0)]`

D

None of these

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(b)
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