A hollow double concave lens is made of very thin transparent material

PHYSICS · Single correct · CBSE · Physics · Light — Reflection and Refraction · Light — Reflection and Refraction

Problem

A hollow double concave lens is made of very thin transparent material. It can be filled with air or either of two liquids L1L_1 or L2L_2 having refractive indices μ1\mu_1 and μ2\mu_2 respectively ( μ2>μ1>1\mu_2 > \mu_1 > 1 ). The lens will diverge a parallel beam of light if it is filled with [2000S] (1) air and placed in air (2) air and immersed in L1L_1 (3) L1L_1 and immersed in L2L_2 (4) L2L_2 and immersed in L1L_1

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