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AP EAMCET20227 Jul 2022Evening ShiftPhysicsElectromagnetic WavesActual

In a plane electromagnetic wave U_E and U_B are average energy densities of electric field and magnetic field respectively, then the correct option in the following is

Options

  1. AU_E= U_B 2
  2. BU_E=2 U_B
  3. CU_E=U_B
  4. DU_E U_B

Correct answer

C. U_E=U_B

Step-by-step solution

Energy of electromagnetic wave is equally shared between electric and magnetic fields, U_E=U_B . i.e, 1 2 ₀ E^2= 1 2 ₀ B^2

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