(B) The pitch of a sound depends on the frequency of the vibration. Since the same key is struck,the frequency remains constant,and therefore the pitc

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sound will be louder but pitch will not be different

(B) The pitch of a sound depends on the frequency of the vibration. Since the same key is struck,the frequency remains constant,and therefore the pitch does not change.Loudness depends on the amplitude of the vibration. When the key is struck harder,the amplitude of the vibration increases,which results in a louder sound.

Class 9 Science SOUND Mix Example - SOUND

Medium

$A$ key of a mechanical piano is struck gently and then struck again but much harder this time. In the second case,

A
sound will be louder and pitch will also be higher
B
sound will be louder but pitch will not be different
C
sound will be louder but pitch will be lower
D
both loudness and pitch will remain unaffected

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Mix Example - SOUND

If the frequency of a tuning fork is $400 \, Hz$ and the speed of sound in air is $340 \, m/s$. Find how far sound travels when the tuning fork makes $16$ vibrations. (in $m$)

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Which of the following are transferred from one place to another place by the waves?

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What is the audible range for human beings?

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Before playing the orchestra in a musical concert,a sitarist tries to adjust the tension and pluck the string suitably. By doing so,he is adjusting

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Sound waves are

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$A$ key of a mechanical piano is struck gently and then struck again but much harder this time. In the second case,

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If the frequency of a tuning fork is $400 \, Hz$ and the speed of sound in air is $340 \, m/s$. Find how far sound travels when the tuning fork makes $16$ vibrations. (in $m$)

Which of the following are transferred from one place to another place by the waves?

What is the audible range for human beings?

Before playing the orchestra in a musical concert,a sitarist tries to adjust the tension and pluck the string suitably. By doing so,he is adjusting

Sound waves are

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