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Two planoconvex lenses each of the focal...

Two planoconvex lenses each of the focal length of`10cm`&refractive index`3//2`are placed as shwon .In the space left water`(R.I.=4//3)`is filled.Then whole arrangement is in air.The optical power of the system is(in diopters).

A

6.67

B

-6.67

C

33.3

D

20

Text Solution

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