issb general knowledge MCQ #108

The frequency of a sound wave is expressed in:

issb general knowledge MCQ #108

  1. Question 1

    Q1. The frequency of a sound wave is expressed in:

    • A) Decibels
    • B) Tesla
    • C) Weber
    • D) Hertz

    Answer: Hertz

    Explanation: Hertz counts cycles per second, so it is the SI unit of frequency. Decibels measure sound intensity level, while tesla and weber relate to magnetic fields and flux.