The rate of loss of heat through a glass window of area 1000 cm2 and thickness 0.4 cm when temperature inside is 37oC and outside is -5oC is (Given, coefficient of thermal conductivity of glass is 2.2 x 10-3 cal s-1 cm k-1)
321 cal s-1
300 cal s-1
200 cal s-1
231 cal s-1