CBSE 2023 · Region 4 · Set 1 · Q2 · 1 mark
An electron enters a uniform magnetic field with speed v. It describes a semicircular path and comes out of the field. The final speed of the electron is :
Official answer
From CBSE’s own marking scheme for this paper.
(B)
v
Moving Charges and MagnetismMotion in a Magnetic FieldApplymcqeasy
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CBSE Class 12 Physics past-paper question from the 2023board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.