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CBSE 11th Standard Physics Subject Thermodynamics HOT Questions 5 Mark Questions With Solution 2021 Girish - Chennai May-29 , 2021

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CBSE 11th Standard Physics Subject Thermodynamics HOT Questions 5 Mark Questions With Solution 2021

11th Standard CBSE

Physics

Time : 01:00:00 Hrs

Total Marks : 15

The efficiency of a Carnot engine is 1/2. If the sink temperature is reduced by 100^o C, then engine efficiency becomes 2/3. Find
(i) sink temperature
(ii) source temperature
(iii) Explain, why a Carnot engine cannot have 100% efficiency?

5

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