Problem: Two sources of sinusoidal electromagnetic waves have average powers of P1 = 100.0 W and P2 = 320 W and emit uniformly in all directions. For the electromagnetic wave with P 1 = 100.0 W find the ratio of intensity S1 10 m away from the source to the intensity S 1 100m away from the source, i.e. S1 (10m)/S1(100m) (Hint: Area of sphere 4πR2)

FREE Expert Solution
Problem Details

Two sources of sinusoidal electromagnetic waves have average powers of P1 = 100.0 W and P2 = 320 W and emit uniformly in all directions. For the electromagnetic wave with P 1 = 100.0 W find the ratio of intensity S1 10 m away from the source to the intensity S 1 100m away from the source, i.e. S1 (10m)/S1(100m) (Hint: Area of sphere 4πR2)

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Energy Carried by Electromagnetic Waves concept. You can view video lessons to learn Energy Carried by Electromagnetic Waves. Or if you need more Energy Carried by Electromagnetic Waves practice, you can also practice Energy Carried by Electromagnetic Waves practice problems.

How long does this problem take to solve?

Our expert Physics tutor, Douglas took 6 minutes and 25 seconds to solve this problem. You can follow their steps in the video explanation above.