Physics · 2023
JEE Main · 1 February 2023, Shift 1 · Q24
A thin cylindrical rod of length 10 cm is placed horizontally on the principle axis of a concave mirror of focal length 20 cm. The rod is placed in a…
A thin cylindrical rod of length $\displaystyle 10$ cm is placed horizontally on the principle axis of a concave mirror of focal length $\displaystyle 20$ cm. The rod is placed in a such a way that mid point of the rod is at $\displaystyle 40$ cm from the pole of mirror. The length of the image formed by the mirror will be $\displaystyle \frac{x}{3} \mathrm{~cm}$. The value of $\displaystyle x$ is $\displaystyle \_\_\_\_$.
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From NTA’s final answer key for this paper.
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JEE Main 2023 Physics question, with the answer from NTA’s final answer key. Where our answers come from.