A Carnot engine operates between T1 and T2. If there is an increase in source temperature by t and a decrease in sink temperature by t. How is the efficiency in both cases is related?

A

$$ \eta_1 > \eta_2 $$

B

$$ \eta_1 < \eta_2 $$

C

$$ \eta_1 = \eta_2 $$

D

None of these