CBSE 2026 · Region 3 · Set 1 · Q1 · 1 mark
A particle of mass m and charge q starts from rest and moves in an electric field $\displaystyle \overrightarrow{\mathrm{E}}=\mathrm{E}_{0} \hat{\mathrm{i}}$. After travelling a distance x in the field along x-axis, the kinetic energy of the particle will be :
Official answer
From CBSE’s own marking scheme for this paper.
(B)
$\displaystyle \mathrm{q} \mathrm{E}_{0} \mathrm{x}$
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CBSE Class 12 Physics past-paper question from the 2026board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.