Direction for: In each of the following questions a statement of Assertion is given followed by a corresponding statement of Reason just below it. Of the statements mark the correct answer as
Assertion A hollow metallic closed container maintained at a uniform temperature can act as a source of a black body radiation. Reason All metals act as a black body.A) If the Assertion and Reason are true and Reason is the correct explanation of Assertion
B) If both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C) If Assertion is true but Reason is false
D) If both Assertion and Reason are false
Correct Answer: C
Solution :
A hollow metallic closed container maintained at a uniform temperature can act as source of black body radiation. If is also-well-know that all metals cannot act as black body because if we take a highly metallic polished surface, it will not behave as a perfect black body.
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