InterviewSolution
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InterviewSolution
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An engine has an efficiency of `1/6`. When the temperature of sink is reduced by `62^(@)C`, its efficiency is doubled. Temperature of the source isA. `99^(@)C`B. `124^(@)C`C. `37^(@)C`D. `62^(@)C` |
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Answer» Correct Answer - A `eta=1-(T_(2))/(T_(1))implies (1)/(6)=1-(T_(2))/(T_(1))` `and (1)/(3)=1-((T_(2)-62))/(T_(1))implies (1)/(3)=1-(T_(2))/(T_(1))+(62)/(T_(1))` `implies (1)/(3)=(1)/(6)+(62)/(T_(1))=(1)/(6)=(62)/(T_(1))` |
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