JEE PHYSICS MCQ: RAY OPTICS

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A convex lens is immersed in a liquid, whose refractive index is equal to the refractive index of the material of the lens. Then its focal length will

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Correct option: C

Become infinite

Option C (Become infinite) is correct because when the refractive index of the lens and the surrounding medium are equal, the lens no longer refracts light, effectively making its focal length infinite.

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