Physics
Grade-9
Easy

Question

A simple pendulum performs 18 oscillations per second; the mechanical wave produced by it are:

  1. Ultrasonic wave
  2. Sound wave
  3. Infrasonic wave
  4. None of these

hintHint:

Frequency is the number of occurrences of a repeating event per unit of time

The correct answer is: Infrasonic wave


     

    Thus, it is a sound wave (infrasonic)

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