A thin metal plate is insulated at the back surface and exposed to the sun at the front surface, H 481 2 as illustrated in the accompanying figure. The front surface absorbs the solar radiation of 800 W/m and dissipates it by convection to the ambient air at 20C. If the convection heat transfer coefficient between the plate and the air is 20 W/(m. C), what is the temperature of the plate. HINTS: The energy balance under steady state conditions: Iradiation convection Answ: Tw=60C Ambient air T = 20C h = 20 W/(m.C) Solar radiation q = 800 W/m Insulation Thin metal plate