JEE PHYSICS MCQ: ELECTROMAGNETIC WAVES

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For an electromagnetic wave travelling in free space, the relation between average energy densities due to electric

({U_e})

and magnetic

({U_m})

fields is:

View answer and explanation

Correct option: B

{U_e} = {U_m}

Option B (

{U_e} = {U_m}

) is correct because in an electromagnetic wave, the average energy density due to the electric field is equal to the average energy density due to the magnetic field.

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