The maximum wavelength of radiation emitted at $200 \mathrm{~K}$ is $4 \mu \mathrm{m}$ what will be the maximum wavelength of radiation emitted at $2400 \mathrm{~K}$ ?
(a) $3.33 \mu \mathrm{m}$
(b) $0.66 \mu \mathrm{m}$
(c) $1 \mu \mathrm{m}$
(d) $1 \mathrm{~m}$