Q5
Just after detonation, the fireball in a nuclear blast is approximately an ideal blackbody radiator with a surface temperature of about $$1.0 \times 10^{7} \mathrm{K} .$$ (a) Find the wavelength at which the thermal radiation is maximum and(b) identify the type of electromagnetic wave corresponding to that wavelength. (See Fig. 33-1.) This radiation is almost immediately absorbed by the surrounding air molecules, which produces another ideal blackbody radiator with a surface temperature of about $$1.0 \times 10^{5} \mathrm{K} .$$ (c) Find the wavelength at which the thermal radiation is maximum and (d) identify the type of electromagnetic wave corresponding to that wavelength.
