CBSE 2026 · Region 3 · Set 1 · Q9 · 1 mark
The rate of change of volume of a sphere with respect to its diameter, when its radius is $\displaystyle 5$ cm , is :
Official answer
From CBSE’s own marking scheme for this paper.
(C)
$\displaystyle 50 \pi \mathrm{~cm}^{3} / \mathrm{cm}$
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CBSE Class 12 Mathematics past-paper question from the 2026board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.