An EM wave has an electric field E = 1000 sin(20y + ωt) kˆ (1) 1)...

Question

Question

An EM wave has an electric field E = 1000 sin(20y + ωt) kˆ (1)

1) What is ω?

2) What is the frequency f?

3) What is the direction of propagation?

4) What is B?

5) What is the average energy density u ̄ and the average intensity S ̄ of the wave?

Answer 1

Answer #1

1) w is the angular speed in rad/seg of the wave

2) f, is f=2*pi/w , where pi is the constant pi=3.1416...

3) the direction is given by k, that is the positive direction of Z

4) B is the magnetic field

Good luck!!!

Answer 2

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