Answer Happy

Question 1: For a small surface of area Az = 10-3m2 is known to emit diffusely, and from measurements the total intensity associated with emission in the normal direction is n = w 7000 sr. Radiation emitted from the surface is intercepted by three other surfaces of area A1 Az = Az = A. = 10-3m², which 0.5 m from A, and oriented as shown in the figure below. = m2 Аз A2 10.5 m (AA 0.5 m 60°-45° 0.5 m For this configuration calculate (0) The intensity associated with emission in each of the three directions (10) The solid angles subtended by the three surfaces when viewed from A, (III) The rate at which radiation emitted by Azis intercepted by the three surfaces? (iv) The irradiation at surfaces Az. Ag and A, due to A;