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A plano convex glass lens (mu(g) = 3//2)...

A plano convex glass lens `(mu_(g) = 3//2)` of radius curvature `R = 10 cm` is placed at a distance of b from a concave lens of focal length 20 cm. what should the distance 'a' of a point object O from the plat convex lens so that the position of final image always at same distance from concave lens

A

40 cm

B

60 cm

C

30 cm

D

20 cm

Text Solution

Verified by Experts

The correct Answer is:
D
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DC PANDEY ENGLISH-RAY OPTICS-A. Only one option is correct (JEE Advance)
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  10. The x-z plane separates two media A and B of refractive indices mu(1) ...

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  11. The sides of an isosceles right prism are coated with a reflecting coa...

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  14. A point object O is placed slightly above the centre C of a glass sphe...

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  15. In the figure shown, mu(1) gt mu(2) gt mu(3). What are the limits of a...

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