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dimulka [17.4K]
3 years ago
9

A point source emits electromagnetic energy at a rate of 100 W. The intensity 10 m from the source is

Physics
1 answer:
MariettaO [177]3 years ago
5 0

Answer:

I=0.0795\ W/m^2

Explanation:

Given that,

Power of electromagnetic energy, P = 100 W

We need to find the intensity at a distance of 10 m from the source. Intensity is equal to the power per unit area. So,

I=\dfrac{P}{4\pi r^2}\\\\I=\dfrac{100}{4\pi (10)^2}\\\\I=0.0795\ W/m^2

So, the intensity at a distance of 10 m is 0.0795\ W/m^2

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