Physics

Problem

A hemispherical infrared lamp dome made of glass with emissivity

0.60

must radiate

850\,\text{W}

when its surface temperature is

900\,\text{K}

. Assuming uniform temperature, what radius of the dome is required? a)

11\,\text{cm}

5.5\,\text{cm}

7.8\,\text{cm}

4.6\,\text{cm}