A small surface of area A1 = 3 cm2 emits radiation as a black body with total emissive pow...

A small surface of area A1 = 3 cm2 emits radiation as a black body with total emissive power of Eb= 5.67 × 104W/m2. Part of the radiation emitted by A1 strikes another small surface of area A2 = 8 cm2 oriented as shown in the figure. Determine the rate at which radiation emitted by A1 strikes A2,and the irradiation on A2

Answers: 7.61 × 10–3 W. 9.51W/m2