A light source radiates $60.0 \mathrm {~W}$ of single-wavelength sinusoidal light uniformly in all directions. What is the average intensity of the light from this bulb at a distance of $0.400 \mathrm {~m}$ from the bulb?
A) $11.9 \mathrm {~W} / \mathrm { m } ^ { 2 }$
B) $29.8 \mathrm {~W} / \mathrm { m } ^ { 2 }$
C) $27.4 \mathrm {~W} / \mathrm { m } ^ { 2 }$
D) $14.9 \mathrm {~W} / \mathrm { m } ^ { 2 }$
E) $37.2 \mathrm {~W} / \mathrm { m } ^ { 2 }$

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The Answer of A light source radiates $60.0 \mathrm {~W}$ of single-wavelength sinusoidal light uniformly in all directions. What is the average intensity of the light from this bulb at a distance of $0.400 \mathrm {~m}$ from the bulb?
A) $11.9 \mathrm {~W} / \mathrm { m } ^ { 2 }$
B) $29.8 \mathrm {~W} / \mathrm { m } ^ { 2 }$
C) $27.4 \mathrm {~W} / \mathrm { m } ^ { 2 }$
D) $14.9 \mathrm {~W} / \mathrm { m } ^ { 2 }$
E) $37.2 \mathrm {~W} / \mathrm { m } ^ { 2 }$

A Light Source Radiates 60.0 W60.0 \mathrm {~W}60.0 W Of Single-Wavelength Sinusoidal Light Uniformly in All Directions

A Light Source Radiates $60.0 \mathrm {~W}$ Of Single-Wavelength Sinusoidal Light Uniformly in All Directions