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Questions  >>  JEEMAIN and NEET  >>  NEET PAST PAPERS  >>  2006
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Q)

A Carnot engine whose sink is at 300 K has an efficiency of 40%. By how much should the temperature of source be increased so as to increase its efficiency by 50% of original efficiency:-


( A ) 380 K
( B ) 275 K
( C ) 250 K
( D ) 325 K

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