Which one of the following is the property of a monochromatic, plane electromagnetic wave in free space?
Which one of the following is the property of a monochromatic, plane electromagnetic wave in free space?
A. Electrica and magnetic fields have a plane difference of `pi//2`
B. The energy contribution of both electric and magnetic fields are equal
C. The direction of propagation is in the direction of `B xx E`
D. The pressure exerted by the wave is the product of its speed and energy density
4 views
1 Answers
Correct Answer - B
The energy in EM waves is divided equally between the electric and magnetic fields.
4 views
Answered