The efficiency of Carnot engine is 50% and temperature of sink is 500 K. If temperature of source is kept constant and its efficiency raised to 60%, then the required temperature of sink will be
A
100 
B
600 
C
400 
D
500 
Text Solution
Verified by ExpertsThe correct answer is:
C
Efficiency 
of a carnot engine is given by 
, where 
is the temperature ofthe
source and 
is the temperature of the sink.
Here, 
K.
Now, 
is the new sink temperature)
K.
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