Physics · 2026
JEE Main · 28 January 2026, Shift 2 · Q26
In an experiment, a set of reading are obtained as follows - 1.24 mm, 1.25 mm, 1.23 mm, 1.21 mm. The expected least count of the instrument used in…
In an experiment, a set of reading are obtained as follows - $\displaystyle 1.24$ mm, $\displaystyle 1.25$ mm, $\displaystyle 1.23$ mm, $\displaystyle 1.21$ mm. The expected least count of the instrument used in recording these readings is $\displaystyle \_\_\_\_$ mm.
Official answer
From NTA’s final answer key for this paper.
(3)
$\displaystyle 0.01$
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JEE Main 2026 Physics question, with the answer from NTA’s final answer key. Where our answers come from.