Physics · 2025
JEE Main · 23 January 2025, Shift 2 · Q42
A concave mirror of focal length f in air is dipped in a liquid of refractive index μ. Its focal length in the liquid will be:
A concave mirror of focal length $\displaystyle f$ in air is dipped in a liquid of refractive index $\displaystyle \mu$. Its focal length in the liquid will be :
Official answer
From NTA’s final answer key for this paper.
(2)
$\displaystyle f$
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JEE Main 2025 Physics question, with the answer from NTA’s final answer key. Where our answers come from.