Physics · 2026
JEE Main · 6 April 2026, Shift 1 · Q26
The density ρ of a uniform cylinder is determined by measuring its mass m, length l and diameter d. The measured values of m, l and d are 97.42 ±…
The density $\displaystyle \rho$ of a uniform cylinder is determined by measuring its mass $\displaystyle m$, length $\displaystyle l$ and diameter $\displaystyle d$. The measured values of $\displaystyle m, l$ and $\displaystyle d$ are $\displaystyle 97.42 \pm 0.02 \mathrm{~g}$, $\displaystyle 8.35 \pm 0.05 \mathrm{~mm}$ and $\displaystyle 20.20 \pm 0.02 \mathrm{~mm}$, respectively. Calculated percentage fractional error in $\displaystyle \rho$ is $\displaystyle \_\_\_\_$.
Official answer
From NTA’s final answer key for this paper.
(2)
0.$\displaystyle 82$%
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JEE Main 2026 Physics question, with the answer from NTA’s final answer key. Where our answers come from.