Physics · 2023
JEE Main · 11 April 2023, Shift 1 · Q52
The radius of curvature of each surface of a convex lens having refractive index 1.8 is 20 cm. The lens is now immersed in a liquid of refractive…
The radius of curvature of each surface of a convex lens having refractive index $\displaystyle 1.8$ is $\displaystyle 20$ 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 $\displaystyle x: 1$. The value of $\displaystyle x$ is
$\displaystyle \_\_\_\_$
Official answer
From NTA’s final answer key for this paper.
4
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JEE Main 2023 Physics question, with the answer from NTA’s final answer key. Where our answers come from.