Fundamentholfundamenthol
JEE Main2019Physics
Q.

A Carnot engine has an efficiency of  . When the temperature of the sink is reduced by 62°C, its efficiency is doubled. The temperatures of the source and the sink are, respectively, 

  1. A

    99°C, 37°C

  2. B

    37°C, 99°C     

  3. C

    124°C, 62°C

  4. D

    62°C, 124°C 

Solution

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