jee_main_2025_28_jan_morning - Thermodynamics Topics

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QUESTION #7 Carnot Engine and Efficiency
A Carnot engine (E) is working between two temperatures 473K and 273K. In a new system two engines - engine mathrmE_1 works between 473K to 373K and engine mathrmE_2 works between 373K to 273K. If eta_12 , eta_1 and eta_2 are the efficiencies of the engines E, mathrmE_1 and mathrmE_2 , respectively, then
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JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%) | JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%)
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