Em Waves Question 114

Question: In an electromagnetic wave, power is

Options:

A) transmitted along the magnetic field

B) transmitted along the electric field equally

C) transferred along the electric and magnetic fields

D) transmitted in a direction perpendicular to both electric and magnetic fields

Show Answer

Answer:

Correct Answer: D

Solution:

[d] The power per unit area carried by an E.M. wave i.e., energy transported per unit time across a unit crossection area is perpendicular to the direction in which the wave is travelling.