In the engineering design process, what do engineers do immediately before brainstorming multiple solutions?
A. Identify criteria and constraints.
B. Select one solution.
O C. Model the solution.
O
D. Iterate to improve the solution.

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?