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'Beats' is a phenomenon that occurs when frequencies of two harmonic waves are

Options

  1. Aequal.
  2. Bfar apart.
  3. Cmultiples of each other.
  4. Dnearly same.

Correct answer

D. nearly same.

Step-by-step solution

- The beating phenomenon occurs when two harmonic waves of slightly different frequencies are impressed on a body. They are a periodic variation in vibration at a frequency that is the difference between to two frequencies. - When two sound waves of different frequency approach your ear, the alternating constructive and destructive interference causes the sound to be alternatively soft and loud - a phenomenon which is called "beating" or producing beats.

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