Assertion : A hollow metallic closed container maintained at a uniform temperature cab act as a source of black body radiation.
Reason : All metals act as a black body.

Options

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

Answer

C

Explanation

Hollow metallic closed container maintained at a uniform temperature can act as a source of black body. It is also well-known that all metals cannot act as a black body because if we take a highly metallic polished surface, it will not behave as a perfect black body.