JEE Mains 27-July-2022 Shift 2 Solved Paper

Section: Physics

Question : 38 of 90

Marks: +1, -0

In 1‌st ‌ case, Carnot engine operates between temperatures 300K and 100K.ln‌2‌nd ‌ case, as shown in the figure, a combination of two engines is used. The efficiency of this combination (in 2‌nd ‌ case) will be :

[27-Jul-2022-Shift-2]

same as the 1‌st ‌ case.
always greater than the 1‌st ‌ case.
always less than the 1‌st ‌ case.
may increase or decrease with respect to the 1‌st ‌ case.

Validate

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