Question

what is sound ? Which type of sound .​

Answer 1

Answer:

$Sound is a longitudinal, mechanical wave. It is caused by the back and forth vibration of the particles of the medium through which the sound wave is moving. The vibrations of the object set particles in the surrounding medium in vibrational motion, causing the auditory receptors to detect them. This is called sound.$

Explanation:

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Answer 2

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Sound is a longitudinal, mechanical wave. It is caused by the back and forth vibration of the particles of the medium through which the sound wave is moving. The vibrations of the object set particles in the surrounding medium in vibrational motion, causing the auditory receptors to detect them.

The three types of sound are:

• Infrasonic: It is a sound with a frequency of less than 20Hz. Elephants use Infrasonic sounds to interact with herds hundreds of km away.

• Sonic: It is a sound with the frequency between 20 to 20,000Hz.

• Ultrasonic: It is a sound with a frequency more than 20,000Hz.

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