Solar radiation of 1000 W/m2 is incident on a grey opaque surface with emissivity of 0.4 and emissive power of 400 W/m2. The radiosity of the surface will be:

Solar radiation of 1000 W/m2 is incident on a grey opaque surface with

1.	Solar radiation of 1000 W/m2 is incident on a grey opaque surface with emissivity of 0.4 and emissive power of 400 W/m2. The radiosity of the surface will be:
A.	940 W/m2
B.	850 W/m2
C.	760 W/m2
D.	670 W/m2
Answer» D. 670 W/m2