An Electric Current Through a Tungsten Filament Maintains Its Temperature

Multiple Choice

An electric current through a tungsten filament maintains its temperature at 2800 K.Assume the tungsten filament behaves as an ideal radiator at that temperature.Near what wavelength does the filament emit the greatest power? (σ = 5.67 × 10^-8 W/m² • K⁴,Wien displacement law constant is 2.9 × 10^-3 m • K)

A) 1000 nm
B) 1200 nm
C) 1400 nm
D) 1600 nm
E) 1800 nm