Physics · 2025
JEE Main · 29 January 2025, Shift 2 · Q40
A convex lens made of glass (refractive index =1.5 ) has focal length 24 cm in air. When it is totally immersed in water (refractive index =1.33 ),…
A convex lens made of glass (refractive index $\displaystyle =1.5$ ) has focal length $\displaystyle 24$ cm in air. When it is totally immersed in water (refractive index $\displaystyle =1.33$ ), its focal length changes to
Official answer
From NTA’s final answer key for this paper.
(2)
$\displaystyle 96$ cm
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