Assertion : Two bodies at different temperatures if brought in thermal contact do not necessary settle to the mean temperature
Reason : The two bodies may have different thermal capacities.

Options

A. If both the assertion and reason are true and reason is the correct explanation of the assertion.
B. If both the assertion and reason are true but the reason is not correct explanation of the assertion.
C. If the assertion is true but the reason is false
D. If the both the assertion and reason are false.

Answer

A

Explanation

When two bodies at temperature `T_(1)` and `T_(2)` are brought in termal contact, they do settle to the mean temperature `(T_(1)+T_(2))//2`. They will do so, in case the two bodies waer of same mass and meterial i.e., same thermal capacities. In order words, the two bodies may be having different thermal capacities, that's why they do not settle to the mean temperature, when brought together.