Optics: JEE Main 2023 Physics question

JEE Main 2023 · 11 Apr, Morning shift · Q61

JEE Main 202311 Apr, Morning shiftPhysicsMediumOptics190× since 2002

The radius of curvature of each surface of a convex lens having refractive index 1.8 is

20 \mathrm{~cm}

. The lens is now immersed in a liquid of refractive index 1.5 . The ratio of power of lens in air to its power in the liquid will be

x: 1

. The value of

x

is _________.

Your answerType your answer. Integers and decimals are accepted.

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