A thin coverging lens is made up of glass of refractive index 1.5. It – InterviewSolution

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1.	A thin coverging lens is made up of glass of refractive index 1.5. It acts like a concave lens of focal length 50 cm, when immersed in a liquid of refractive index 158, focal length of converging lens in air (in metre) is
Answer» A thin coverging lens is made up of glass of refractive index $1.5$ . It acts like a concave lens of focal length $50 cm$ , when immersed in a liquid of refractive index $\frac{15}{8}$ , focal length of converging lens in air (in metre) is

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