The Carnot heat engine have an efficiency of 
. The temperature of sink is maintained at 
. To increase the efficiency upto 
, the increment in the source temperature is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
Here,
Initial efficiency 
Temperature of sink, 
Final efficiency, 
and 
be the initial and final temperature of source.
As we know that,
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