The top of an insulated cylindrical container is covered by a disc having emissivity 0.6 and
Channel: Doubtnut
Date: 2020-08-23

The top of an insulated cylindrical container is covered by a disc having emissivity 0.6 and conductivity 0.167 `"WK"^(– 1)m^(–1)` and thickness 1 cm. The temperature is maintained by circulating oil as shown in figure. Find the radiation loss to the surrounding in `"Jm"^(–2)s^(–1 )`if temperature of the upper surface of the disc is `27^(@)"C"` and temperature of the surrounding is `27^(@)"C"`.