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Question

A radio operator broadcast on the 6-meter band. The frequency of this electromagnetic radiation is __________ MHz.


  1. 50

  2. 200

  3. 500

  4. 20


Solution

The correct option is A

50


The speed of all form of electromagnetic wave is related by the equation c = λ.ν,

Where c is the speed of light = 3.00 x 108 m/s, λ is the wavelength in m and ν is the frequency is s-1 or Hz.

Therefore, ν = 3.0 x108 / 6 = 5 x 108 s-1 = 50 MHz

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