Physics · 2025
JEE Main · 28 January 2025, Shift 2 · Q42
A concave mirror produces an image of an object such that the distance between the object and image is 20 cm. If the magnification of the image is '…
A concave mirror produces an image of an object such that the distance between the object and image is $\displaystyle 20$ cm. If the magnification of the image is ' $\displaystyle -3^{\prime}$, then the magnitude of the radius of curvature of the mirror is :
Official answer
From NTA’s final answer key for this paper.
(4)
$\displaystyle 15$ cm
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JEE Main 2025 Physics question, with the answer from NTA’s final answer key. Where our answers come from.