Physics · 2026
JEE Main · 21 January 2026, Shift 1 · Q48
In a microscope the objective is having focal length f_o=2 cm and eye-piece is having focal length f_e=4 cm. The tube length is 32 cm. The…
In a microscope the objective is having focal length $\displaystyle f_o=2 \mathrm{~cm}$ and eye-piece is having focal length $\displaystyle f_e=4 \mathrm{~cm}$. The tube length is $\displaystyle 32$ cm. The magnification produced by this microscope for normal adjustment is $\displaystyle \_\_\_\_$.
Official answer
From NTA’s final answer key for this paper.
100
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JEE Main 2026 Physics question, with the answer from NTA’s final answer key. Where our answers come from.