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The specific heat of a metal at low temp...

The specific heat of a metal at low temperatures varies according to `S = aT^3`, where a is a constant and T is absolute temperature. The heat energy needed to raise unit mass of the metal from temperature `T = 1 K` to `T = 2K` is

A

A) 3a

B

B) `(15a)/(4)`

C

C) `(2a)/(3)`

D

D) `(12a)/(5)`

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The correct Answer is:
B
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