Heat energy is incident on the surface at the rate of 1000 ~J / min . If coefficient of absorption is 0.8 and coefficient of reflection is 0.1 then heat energy transmitted by the surface in 5 minutes is

Step-by-step solution

Let, heat transmitted per minute be H Now, Energy incident=energy absorbed+energy reflected+energy transmitted aligned & 1000=0.8 1000+0.1 1000+ H & H =100 ~J / min aligned Heat energy transmitted in 5 minutes =100 5=500 ~J