A filament with a fixed surface area radiates of power when operated at

PHYSICS · Single correct · AP · Physics 2: Algebra-based · Modern Physics · Modern Physics

Problem

A filament with a fixed surface area radiates

40\,\text{W}

of power when operated at

2000\,\text{K}

. Approximately what temperature should an identical filament reach if it is to radiate

160\,\text{W}

? (a)

4000\,\text{K}

(b)

2800\,\text{K}

(c)

2400\,\text{K}

(d)

3200\,\text{K}