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Assertion : All black coloured objects a...

Assertion : All black coloured objects are considered black bodies.
Reason : Black colour is a good absorber of heat

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 assertion is false but reason is true.

Text Solution

Verified by Experts

The correct Answer is:
D
It is not necessary that all black coloured objects are black bodies. For example, if we take a black surface which is highly polished, it will not behave as a perfect black body.
A perfectly black body absorbs all radiations incident on it.
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