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Physics
From Kirchhoff's law the ratio of emissive power and absorption power of all bodies -
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Q. From Kirchhoff's law the ratio of emissive power and absorption power of all bodies -
NTA Abhyas
NTA Abhyas 2020
Thermal Properties of Matter
A
are different
6%
B
is equal to emissive power of black body at same temperature
78%
C
is equal to emissive power of white body
6%
D
is equal to emissive power of black body at any temperature
11%
Solution:
Ratio of emissive power and absorbtive power of a body remain constant at a given temperature.