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Two this lenses, when in contact, produc...

Two this lenses, when in contact, produce a combination of power `+10` diopters. When they are 0.25 m apart, the power reduces to `+6` diopters. The focal length of the lenses are…. `m` and …`m`.

A

0.125 and 0.5

B

0.125 and 0.125

C

0.5 and 0.75

D

0.125 and 0.75

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The correct Answer is:
a
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