A small, opaque ball (diameter D=2cm) with a surface temperature, 1° C, is suspended in a large oven whose walls are at 180°C. The oven walls are diffuse and grey, and

have an emissivity of 0.6. The surface of the ball is diffuse and has an emissivity of 0.76 and absorptivity of 0.63. Determine the net radiative flux (W) into the ball. Hint:net flux includes absorbed and emitted radiation. Give your answer to 2 decimal places. X 2.4 Correct Answer: 1.59 €1 €2 X₁ 1₂ €3