Second Law of Thermodynamics and Carnot Engine
PHXI12:THERMODYNAMICS

371418 Assertion :
The carnot cycle is useful in understanding the performance of heat engines.
Reason :
The carnot cycle provide a way of determining the maximum possible efficiency of heat engines.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.