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(A) : A body that is a good radiator is ...

(A) : A body that is a good radiator is also a good absorber of radiation at a given wavelength.
( R) : According to Kirchoff's law the absorptivity of a body is equal to its emissivity at a given wavelength.

A

Both (A) and (R) are true and (R) is the correct explanation of (A)

B

Both (A) and (R) are true and (R) is not the correct explanation of (A)

C

(A) is true but (R) is false

D

Both (A) and (R) are false

Text Solution

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The correct Answer is:
A
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