CBSE 2025 · Region 4 · Set 1 · Q4 · 1 mark
A bar magnet is initially at right angles to a uniform magnetic field. The magnet is rotated till the torque acting on it becomes one-half of its initial value. The angle through which the bar magnet is rotated is :
Official answer
From CBSE’s own marking scheme for this paper.
(C)
$\displaystyle 60^{\circ}$
Moving Charges and MagnetismTorque on Current Loop, Magnetic DipoleApplymcqmedium
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CBSE Class 12 Physics past-paper question from the 2025board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.