The spectral hemispherical absorptivity of an opaque surfac

The spectral, hemispherical absorptivity, , of an opaque surface and the spectral distribution of irradiation, G, on the surface are approximated in the graphs below.

What is the total, hemispherical absorptivity of the surface?

(b) If we assume that Kirchhoff’s law holds for the hemispherical spectral properties, and the surface temperature is at 1333 K, what is the total hemispherical emissivity, ?

(c) What is the net radiant heat flux, q\", to the surface? Recall that Stephan-Boltzmann’s constant is 5.67 x 10-8 W/m2 K. Assume the surroundings are at zero Kelvin.

Solution

WHere are the plots??...

post the graphs too... Ill solve the question