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A biconvex lens of glass having refractive index 1.47 is immersed in a liquid. It becomes invisible and behaves as a plane glass plate. The refractive index of the liquid is
Option: 1 1.47
Option: 2 1.62
Option: 3 1.33
Option: 4 1.51

Answers (1)

The ray will pass un deviated through it only when the medium has the same refractive index as that of the biconvex lens

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Safeer PP

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