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JEE PHYSICS MCQ: RAY OPTICS

1 Medium

1 of 1

Application +4 | -1

A convex lens of glass

(\mu=1.5)

having focal length

{f}=15 \mathrm{~cm}

is dipped completely in water. Focal length of convex lens in water becomes

\left(\mu_{\text {water}}=\frac{4}{3}\right)

View answer and explanation

Correct option: A

60 \mathrm{~cm}

Option A (

60 \text{{ cm}}

) is correct because the focal length of the lens increases when it's immersed in water due to the change in refractive index.

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