One reversible heat engine operates between 1600 K and T2 K and another reversib

Question

One reversible heat engine operates between 1600 K and T2 K and another reversible heat engine operates between T2 K and 400 K. If both the engines have the same heat input and output, then temperature T2 is equal to

Options:

A . 800 K

B . 1000 K

C . 1200 K

D . 1400 K

Answer: Option A

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