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JEE PHYSICS MCQ: THERMAL PROPERTIES OF MATTER
1
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Analyzing
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Assertion (A) : A normal body can radiate energy more than a perfectly black body.
Reason (R) : A perfectly black body is always black in colour.
Reason (R) : A perfectly black body is always black in colour.
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Correct option: C
If Assertion is true, but the Reason is false.
The correct answer is C because a normal body can radiate more energy than a black body if its temperature is higher, but a black body doesn't have to be black in color.
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