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CGP EDU Academic Team
Published on: September 12, 2026
In 1 st case, Carnot engine operates between temperatures 300 K and 100 K. In 2 nd case, as shown in the figure, a combination of two engines is used. The efficiency of this combination (in 2 nd case) will be:
Text Solution
Verified by ExpertsThe correct answer is:
A
First case: 
Second case: 
H (first case) = 
(second case)
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