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An engine is working. It takes 100 calories of heat from source and leaves 80 calories of heat to sink.

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An engine is working. It takes 100 calories of heat from source and leaves 80 calories of heat to sink. If the temperature of source is 127°C, then temperature of sink is

(a) 147°C

(b) 47°C

(c) 100°C

(d) 47° K.

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1 Answer

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Best answer

Correct option (b) 47°C

Explanation :

Heat taken from source Q1 = 100 cal

Heat left to sink Q2 = 80 cal

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