Physics · 2026
JEE Main · 4 April 2026, Shift 1 · Q39
A rod of length 10 cm lies along the principle axis of a concave mirror of focal length 10 cm as shown in figure. The length of the image is ____ cm.
A rod of length $\displaystyle 10$ cm lies along the principle axis of a concave mirror of focal length $\displaystyle 10$ cm as shown in figure. The length of the image is $\displaystyle \_\_\_\_$ cm.
Official answer
From NTA’s final answer key for this paper.
(2)
$\displaystyle 5$
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JEE Main 2026 Physics question, with the answer from NTA’s final answer key. Where our answers come from.