14. The temperature of reservoir of Carnot’s engine operating with an efficiency of 70% is 1000K. The temperature of its sink is
(a) 300 K (b) 400 K
(c) 500 K (d) 700 K
Answer-a
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(a) – 5 J (b) – 10 J (c) – 15 J (d) – 20 J Answer-a