Higher the frequency of the sound wave, _________ is its pitch.

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Solution

Sound propagates in the form of a wave in a medium.
The number of sound waves passing through a point in the medium is called the frequency of the sound wave.
The pitch of a sound is the characteristic of sound which distinguishes a shrill sound from a flat sound.
It depends on the frequency of the vibrating body.
The pitch of a sound is directly proportional to the frequency of the sound wave.
This means the higher the frequency of the sound waves, high is its pitch.
Thus, higher the frequency of the sound wave, high is its pitch.

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Correct the whole passage-

The amplitude of vibration of a sound wave determines its pitch. The higher the frequency of the sound wave, the lower is its pitch, and hence shriller is the sound produced. Similarly, a sound wave of lower frequency has a low pitch and hence a shriller sound is produced. For example, a man's voice is shriller than a woman's voice. Some examples of low pitch sounds are the screaming of a child and the buzzing of mosquitoes whereas examples of high pitch sounds are the beating of a drum and the roaring of a lion.

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