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COMEDK2014PhysicsElectromagnetic Waves

For an electromagnetic wave, which of the following statements is true?

Options

  1. AElectric field is constant and magnetic field varies.
  2. BMagnetic field is constant and electric field varies.
  3. CBoth electric and magnetic fields are constant.
  4. DBoth electric and magnetic fields vary.

Correct answer

D. Both electric and magnetic fields vary.

Step-by-step solution

In electromagnetic wave, both electric and magnetic fields vary with time.

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