Consider an incandescent lamp as a black body. The filament made of tungsten achieves a temperature of 2737 °C when it is on. During this time, it emits reddish light.Now

calculate 1. The peak wavelength of this light.(Points 5) 2. The total energy emitted per unitarea per unit time. (Points 5) 3. The spectral irradiance for this light (Planck's radiation law).(Points 10)