JEE PHYSICS MCQ: THERMAL PROPERTIES OF MATTER

1 Medium

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Understanding +4 | -1

Assertion: A good absorber is a good emitter.
Reason: For a substance, absorbance is equal to emissivity.

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Correct option: A

If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion

Option A is correct because Kirchhoff's law of thermal radiation states that a good absorber is also a good emitter, and absorbance equals emissivity.

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