Cascaded Carnot engine is an arrangement in which heat sink of one engine is source for other. If high temperature for one engine is 
, low temperature for other engine is 
(Assume work done by both engine is same) Calculate lower temperature of first engine.
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
JEE Main 2020
Let
Heat input to 
engine
Heat rejected from 
engine
Heat rejected from 
engine
Work done by 
engine 
work done by 
engine
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