[A] Amplitude
[B] Time period
[C] Angular Frequency
[D] Angular Displacement
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The correct answer is [B] Time period
The time taken by two consecutive compressions or rarefactions to cross a fixed point in a sound wave is known as the time period.
This time period is the amount of time it takes for two consecutive compressions or rarefactions to pass through a given point.
The wavelength is the distance between two consecutive compressions or rarefactions, and the frequency is the number of waves that pass a given point per second.
The SI unit used to measure these quantities is meters (m).
The magnitude of maximum displacement is also known as the amplitude of the sound wave.