Question
Medium
Solving time: 4 mins
In a plane electromagnetic wave, the electric field oscillates sinusoidally at a frequency of and amplitude .(a) What is the wavelength of the wave?(b) What is the amplitude of the oscillating magnetic field?(c) Show that the average energy density of the E field equals the average energy density of the B field. [c = 3 ]
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Text solutionVerified
The wavelength is given by
Energy density due to the electric field,
Energy density due to the magnetic field,
also,
on solving above equations,
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Question Text | In a plane electromagnetic wave, the electric field oscillates sinusoidally at a frequency of and amplitude . (a) What is the wavelength of the wave? (b) What is the amplitude of the oscillating magnetic field? (c) Show that the average energy density of the E field equals the average energy density of the B field. [c = 3 ] |
Updated On | Aug 1, 2022 |
Topic | Electromagnetic Waves |
Subject | Physics |
Class | Class 12 |
Answer Type | Text solution:1 Video solution: 2 |
Upvotes | 208 |
Avg. Video Duration | 6 min |