NEET 2020 Physics Heat Transfer MCQ Question
The quantities of heat required to raise the temperature of two solid copper spheres of radii r₁ and r₂ (r₁ = 1.5 r₂) through 1 K are in the ratio:
3/2
5/3
27/8
9/4
Correct Answer
Detailed Explanation
Heat required is proportional to volume, which is proportional to r³. Thus, (r₁/r₂)³ = (1.5)³ = 27/8.
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