- 1(current)
Q. No.Select the correct option based on statements below.
A Carnot engine works between two thermal reservoirs maintained at absolute temperatures \(T_{\text{high}}\) and \(T_{\text{low}}\).
A Carnot engine works between two thermal reservoirs maintained at absolute temperatures \(T_{\text{high}}\) and \(T_{\text{low}}\).
| Assertion (A): | If the efficiency of the engine is \(\frac1n,\) then the coefficient of performance of the reversed cycle working as a refrigerator is \(n-1\). |
| Reason (R): | The efficiency of Carnot's cycle is \(1-\frac{T_{\text{low}}}{T_{\text{high}}},\) while the coefficient of performance of the reversed cycle is \(\frac{T_{\text{low}}}{T_{\text{high}~-~T_{\text{low}}}}\). |
| 1. | (A) is true but (R) is false. |
| 2. | (A) is false but (R) is true. |
| 3. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 4. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
Subtopic: Heat Engine & Refrigerator (OLD NCERT) |
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