If between wavelength 
and 
, 
and 
be the emissive and absorptive powers of a body and 
be the emissive power of a perfectly black body, then according to Kirchoff's law, which is true
A
B
C
D
= constant
Text Solution
Verified by ExpertsThe correct answer is:
C
According to Kirchoff’s law, the ratio of emissive power to absorptive power is same for all bodies is equal to the emissive power of a perfectly black body i.e.,
for a particular wave length
⇒ ⇒ 
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