A Carnot engine (E) is working between two temperatures 473 K and 273 K. In a new system two engines-engine 
works between 473 K to 373 K and engine 
works between 373 K to 273 K. If 
and 
are the efficiencies of the engines 
and 
, respectively, then
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
Efficiencies of a carnot engine 
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