CBSE 2024 · Region 3 · Set 2 · Q1 · 1 mark
An isolated conductor, with a cavity, has a net charge +Q . A point charge +q is inside the cavity. The charges on the cavity wall and the outer surface are respectively :
Official answer
From CBSE’s own marking scheme for this paper.
(B)
-q and $\displaystyle \mathrm{Q}-\mathrm{q}$
Electrostatic Potential and CapacitanceElectrostatics of ConductorsApplymcqmedium
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CBSE Class 12 Physics past-paper question from the 2024board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.