PHYS 325 Lecture 15: Lecture 15

The intensity at a distance of 6 m from a source that isradiating equally in all directions is 6.0 X 10^-10W/m². What is the power emitted by the source?

a) 2.1 X 10^{-6 W}

b) 2.7 X 10^{-5 W}

c) 2.7 X 10^{-7 W}

d) 2.1 X 10^-8 W