We have provided the function checkingifin such that if the first input parameter is in the third, dictionary, input parameter, then the function returns that value, and otherwise, it returns false. follow the instructions in the active code window for specific variable assignmemts.

Consider a large isothermal enclosure that is maintained at a uniform temperature of 2000 k. calculate the emissive power of the radiation that emerges from a small aperture on the enclosure surface. what is the wavelength ? , below which 10% of the emission is concentrated? what is the wavelength ? 2 above which 10% of the emission is concentrated? determine the wavelength at which maximum spectral emissive power occurs. what is the irradiation incident on a small object placed inside the enclosure?