"we are like a HEAT ENGINE a device that extracts heat from high temp. source converts a part to useful work and rejects remaining to a low temperature sink. From thermod II law Efficiency of a heat engine can never be 100%, heat rejection is must. IIT -JEE aspirants you can'T BE CONFIDENT ON 100% SYLLABUS, LEAVE PORTION WHERE YOU HAVE LEAST EFFICIENCY BY CHOICE, 60% marks gives very good rank."
(Er Anurag Mishra)
Author : IIT JEE Physics (BALAJI PUBLISHERS)
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