Q.

The figure shows a transparent sphere of radius R and refractive index μ. An object O is placed at a distance x from the pole of the first surface so that a real image is formed at the pole of the exactly opposite surface.

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a

If x=, then the value of  μ is 3

b

If x=, then the value of  μ is 2

c

If x = 2R, then the value of μ is 3

d

If x = 2R, then the value of  μ is 2

answer is A, B.

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Detailed Solution

μ2R1x=μ1R    X=2Rμ2

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