Physics

Problem

A tungsten filament in a light bulb operates at

2.8\times10^{3}\,\text{K}

. Using the constant

2.9\times10^{-3}\,\text{m}\cdot\text{K}

, which of the following is closest to the peak wavelength of the radiation it emits? a)

5.2\times10^{-7}\,\text{m}

(green light) b)

1.0\times10^{-6}\,\text{m}

(near infrared) c)

1.0\times10^{-5}\,\text{m}

(far infrared) d)

3.0\times10^{-6}\,\text{m}

(mid-infrared)