A Carnot engine with efficiency η operates between two heat reservoirs with temperatures T_1 and T_2 where T_1 > T_2. If only T_1 is changed by 0.4%. the change in efficiency is Δ\eta_1, whereas if only T_2 is changed by 0.2%. the efficiency is changed by Δ\eta_2. The ratio \frac{\Delta\eta_1}{\Delta\eta_2} is approximately

TS EAMCET 04 May 2019 Shift 1 Solved Paper

Section: Physics

Question : 99 of 160

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A Carnot engine with efficiency η operates between two heat reservoirs with temperatures T1 and T2 where T1 > T2. If only T1 is changed by 0.4%. the change in efficiency is Δη1, whereas if only T2 is changed by 0.2%. the efficiency is changed by Δη2. The ratio

Δη1

Δη2

is approximately

Validate

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