There are two cavities (Fig. 5.39) with small holes of equal diameters d = 1.0 cm and

Question:

There are two cavities (Fig. 5.39) with small holes of equal diameters d = 1.0 cm and perfectly reflecting outer surfaces. The distance between the holes is l = 10 cm. A constant temperature T1 = 1700 K is maintained in cavity 1. Calculate the steady-state temperature inside cavity 2. Take into account that a black body radiation obeys the cosine emission law.

There are two cavities (Fig. 5.39) with small holes of