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A concave mirror of focal length \(f\) in air is dipped in a liquid of refractive index \(\mu\). Its focal length in the…

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A concave mirror of focal length \(f\) in air is dipped in a liquid of refractive index \(\mu\). Its focal length in the liquid will be:

[JEE Main 2025, 23 Jan (Shift 2)]

a

\(\mu f\)

b

\(\frac{f}{(\mu -1)}\)

c

\(\frac{f}{\mu }\)

d

\(f\)

✓ Correct answer: d)

\(f\)

Explanation

There is no effect of medium on focal length of Spherical mirror.

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