+1 vote
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The quantities of heat required to raise the temperature of two solid copper spheres of radii r1 and r2(r1 - 1.5 r2) through 1k are in the ratio :

(1) \(\frac{5}{3}\)

(2) \(\frac{27}{8}\)

(3) \(\frac{9}{4}\)

(4) \(\frac{3}{2}\)

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1 Answer

+1 vote
by (50.0k points)

Correct answer is (2) \(\frac{27}{8}\)

Heat supplied ΔQ = MsΔT

For same meterial 's' same.

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