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Which one of the following cannot be the unit of frequency of a sound wave?

Options

  1. AdB
  2. Bs ⁻¹
  3. CHz
  4. Dmin ⁻¹

Correct answer

A. dB

Step-by-step solution

The frequency of sound waves is measured in hertz ( Hz ) , or the number of waves that pass a fixed point per unit time. Unit of frequently is S ⁻¹ or min ⁻¹ or Hz . db or decibel is the unit of loudness of sound.

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