The emissive power of a black body at `T=300K` is `100Watt//m^(2)` consider a body B o
Channel: Doubtnut
Date: 2020-04-05

The emissive power of a black body at `T=300K` is `100Watt//m^(2)` consider a body B of area `A=10m^(2)` coefficient of reflectivity `r=0.3` and coefficient of transmission `t=0.5` its temperature is 300 K. then which of the followin is correct: