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JEE Main20241 Feb 2024Evening ShiftPhysicsElectromagnetic WavesActual

If frequency of electromagnetic wave is 60 MHz and it travels in air along z direction then the corresponding electric and magnetic field vectors will be mutually perpendicular to each other and the wavelength of the wave in m is :

Options

  1. A2 . 5
  2. B10
  3. C5
  4. D2

Correct answer

C. 5

Step-by-step solution

As speed of electromagnetic wave is given by, c = f λ . Therefore, λ = c f = 3 × 10 8 60 × 10 6 = 5 m .

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