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Sound — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceSound1 Mark
MCQ
The maximum distance that a particle moves away from its rest position is called $.........$
  • ✓
    Amplitude
  • B
    Frequency
  • C
    Velocity
  • D
    Time period
✓

Answer

Correct option: A.
Amplitude
Amplitude is the maximum displacement or distance moved by a point on a vibrating body or wave measured from its equilibrium position. It is equal to one$-$half the length of the vibration path. For a transverse wave, such as the wave on a plucked string, amplitude is measured by the maximum displacement of any point on the string from its position when the string is at rest. For a longitudinal wave, such as a sound wave, amplitude is measured by the maximum displacement of a particle from its position of equilibrium.

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