Question

If the coefficient of emission of a body is $0.2$ and the coefficient or reflection is $0.3,$ what fraction of the incident radiation is transmitted by the body?

Answer 1

Given : $r=0.3$ $a=0.2$

Using $a+r+t=1$

So, $0.2+0.3+t=1$

$⟹t=0.5$