The reflectance and emittance of a perfectly black body are respectively

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The reflectance and emittance of a perfectly black body are respectively

PhysicsThermal Properties of MatterNEET

Options:

A $0, 1$
B $1, 0$
C $0.5, 0.5$
D $0, 0$

Solution:

2795 Upvotes Verified Answer

The correct answer is:

0, 1

According to kirchhoff's law ideal black body absorb all the heat at low temperature and emits it all at high temperature

a = e = 1 a n d r = 0

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