A) \[\frac{2T}{rJ}\]
B) \[\frac{3T}{RJ}\]
C) \[\frac{3T}{J}\left( \frac{1}{r}-\frac{1}{R} \right)\]
D) \[\frac{2T}{J}\left( \frac{1}{r}-\frac{1}{R} \right)\]
Correct Answer: C
Solution :
Rise in temperature,\[\Delta \theta =\frac{3T}{JSd}\left( \frac{1}{r}-\frac{1}{R} \right)\] \\[\Delta \theta =\frac{3T}{J}\left( \frac{1}{r}-\frac{1}{R} \right)\] (For water S = 1 and d = 1)
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