a) Which of the following relationships accurately describes the electric field

Question

a) Which of the following relationships accurately describes the electric field E and the magnetic field B in an electromagnetic wave?
1. BE = c
2. BE = 1/c
3. B = cE
4. E = cB

b) Compared to either the electric field E or the magnetic field B of a ray of light, the intensity of the ray is proportional to which of the following?
1. E2B2
2. 1/B2
3. 1/E2
4. B2

c) Polarized light passes through a polarizer. The angle between the direction of the incoming light's polarization and the transmission axis of the polarizer is /theta. The ratio of the intensity of the outgoing light to the incoming light is:
1. cos2
2. cos
3. sin2
4. tan2

Explanation / Answer

1) E = cB

2) B^2

intensity I = B62/2*mue0

3)he ratio of the intensity of the outgoing light to the incoming light is

I/I0 = cos^2(thtea)

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.