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MHT CET 2026 Physics question

PhysicsThermodynamicsMHT CET 2026

A Carnot engine, whose efficiency is 40% takes heat from a source maintained at temperature 600K. To have an efficiency 60%, the intake temperature for the same exhaust temperature should be

Answer: (B)

Solution

Carnot efficiency . First case: , so K (the exhaust temperature stays fixed). Second case: $0.6 = 1 -

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Question ID VK-100075