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Physics · 2026 · 4 marks
NEET 2026 · 21 June · Code 50 · Q24
The temperature of a metallic sphere of radius R is increased by a small amount Δ T. If the linear coefficient of thermal expansion of the metal is…
The temperature of a metallic sphere of radius R is increased by a small amount $\displaystyle \Delta \mathrm{T}$. If the linear coefficient of thermal expansion of the metal is $\displaystyle \alpha$, the approximate increase in the volume of the sphere is :
Official answer
From NTA’s final answer key for this paper.
(3)
$\displaystyle 4 \pi \mathrm{R}^3 \alpha \Delta \mathrm{~T}$
NEET (UG) 2026 Physics question, with the answer from NTA’s final answer key. Where our answers come from.