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JEE Main202313 Apr 2023Evening ShiftPhysicsElectromagnetic WavesActual

In an electromagnetic wave, at an instant and at a particular position, the electric field is along the negative z-axis and magnetic field is along the positive x-axis. Then the direction of propagation of electromagnetic wave is:

Options

  1. Apositive z-axis
  2. Bpositive y-axis
  3. Cat 45 ° angle from positive y -axis
  4. Dnegative y-axis

Correct answer

D. negative y-axis

Step-by-step solution

Direction of propagation of the electromagnetic wave is along E   → × B → Thus, n → = E - k ^ × B i ^ Therefore, n ^ = - k ^ × i ^ = - j ^

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