Lag1989 problem number 23.16

The surface of the Sun is close in its properties to a completely black body. The maximum emissivity occurs at a wavelength of 0.5 μm (in the radiation of the Sun that has passed through the atmosphere and reached the Earth´s surface, the maximum falls by 0.55 μm). Determine the temperature of the solar surface and the energy W radiated by the Sun in 1 s in the form of electromagnetic waves.