AP EAMCET Engineering 2013 Solved Paper

Section: Physics

Question : 19 of 160

Marks: +1, -0

Efficiency of a heat engine whose sink is at temperature of 300 K is 40%. To increase the efficiency to 60%, keeping the sink temperature constant, the source temperature must be increased by

750 K
500 K
250 K
1000 K

Validate

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