Physics_Q8_JEE_Advanced_2012_S1 - Competishun – Live JEE & NEET Courses and Exam Prep

JEE ADVANCE 2012

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Question

A bi-convex lens is formed with two thin plano-convex lenses as shown in the figure. Refractive index n of the first lens is 1.5 and that of the second lens is 1.2. Both the curved surfaces are of the same radius of curvature R=14 cm. For this bi-convex lens, for an object distance of 40 cm, the image distance will be

Select the correct option:

A

-280.0 cm

B

40.0 cm

C

21.5 cm

D

13.3 cm

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Solution

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