Home Physics Electromagnetic Wave All Topic Question for Revision Test During the propagation of electromagnetic wa…
Physics Electromagnetic Wave All Topic Question for Revision Test MCQ (Single Correct)

During the propagation of electromagnetic waves in a medium,

A
the electric energy density is equal to the magnetic energy density
B
both electric and magnetic energy densities are zero
C
the electric energy density is double of the magnetic energy density
D
the electric energy density is half of the magnetic energy density

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Text Solution

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The correct answer is:
A

In an electromagnetic wave, the electric and magnetic fields oscillate such that their average energy densities are equal.

That is,

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