In a plane electromagnetic wave electric field and magnetic field must be perpendicular to each other and direction of propagation of wave should be along electric field or magnetic field

Question

Identify the correct statement(s) from the following descriptions of various properties of electromagnetic waves.

A. In a plane electromagnetic wave electric field and magnetic field must be perpendicular to each other and direction of propagation of wave should be along electric field or magnetic field

B. The energy in electromagnetic wave is divided equally between electric and magnetic fields

C. Both electric field and magnetic field are parallel to each other and perpendicular to the direction of propagation of wave

D. The electric field, magnetic field and direction of propagation of wave must be perpendicular to each other

E. The ratio of amplitude of electric field to the amplitude of magnetic field is equal to speed of light

Choose the most appropriate answer from the options given below:

Smart Achievers · Accepted Answer

(2)

$\vec{E},$ $\vec{B}$ and $\vec{C}$ are mutually perpendicular.

Solution

1 D only

2 B, D and E only

3 B, C and E only

4 A, B and E only

Ans.
(2)

$\vec{E},$ $\vec{B}$ and $\vec{C}$ are mutually perpendicular.

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