Question

Explain about pitch and frequency of Sound with suitable picture.

Answer 1

Hey!!
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PITCH

• Pitch is the characteristic of sound that makes it sound high or low, or that determines its position on a musical scale.

 • Though pitch is our perceptual response to frequency, and in particular to the fundamental frequency f0, other contributors include:

 – intensity
 – spectrum
 – duration
 – amplitude envelope
 – presense of other sounds
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FREQUENCY OF THE SOUND WAVES

Frequency in a sound wave refers to the rate of the vibration of the sound travelling through the air. This parameter decides whether a sound is perceived as high pitched or low pitched. In sound, frequency is also known as Pitch. The frequency of the vibrating source of sound is calculated in cycles per second. The SI Unit for Frequency being hertz and its definition being ‘1/T’ where T refers to the time period of the wave. Time period is the time required for the wave to complete one cycle. Wavelength and frequency of a sound wave are related mathematically as:
Velocity of Sound = Frequency * Wavelength


Hope this helps!!
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Answer 2

Answer :

Pitch and Frequency :

The pitch of a sound means high or low the sound is. It depends on how rapidly the sound producer vibrates. Pitch is measured by frequency.

The frequency of a sound is the number of sound vibrations set up in 1 second. It is measured in hertz (Hz).  

When you pluck the top stringer of a guitar, it vibrates 660 times a second. The frequency is 660 Hz. When you pluck the bottom string, it vibrates only 165 times a second, a frequency of 165 Hz. The higher the frequency of a sound, the higher its pitch.

The human ear is able to detect sound in the range of 20 -- 20,000 Hz. Sounds above 20,000 Hz are called ultra sound. Ultrasound is used in the hospital for breaking down kidney stones and gall stones without the need for surgery. Ships use ultra sound in echo sounders to measure to the depth of the water. Sounds below 20 Hz are called infrasound.

$\bigstar \textbf{\underline{\underline{Remember - }}}\\ \\\boxed{\sf Velocity\; of\; Sound\; = Frequency \times Wavelength}$