NCERT CLASS IX - Science Textbook
Chapter 12 - Sound
Which wave property determines (a) loudness, (b) pitch?
Answers
Answered by
2
Loudness:
Loudness of a sound is a measure of the sound energy reaching the ear per second.
Pitch:
Pitch is that characteristic of sound by which we can distinguish between different sounds of the same loudness.
Amplitude:
The maximum displacement of the particles of the medium from their original undisturbed positions when a wave passes through the medium is called amplitude of the wave.
Frequency:
The number of complete waves or cycles produced in one second is called frequency of the wave.
________________________________________________________
Solution:
a) the loudness of sound is determined by the amplitude of sound waves.
Greater the amplitude of sound waves louder the sound will be.
The loudness of a sound is measured in decibel. It is written as dB.
b) the pitch of a sound is determined by the frequency of the vibration of the sound producing source.
Greater the frequency of a sound the higher will be its pitch.
================================================================
Hope this will help you...
Loudness of a sound is a measure of the sound energy reaching the ear per second.
Pitch:
Pitch is that characteristic of sound by which we can distinguish between different sounds of the same loudness.
Amplitude:
The maximum displacement of the particles of the medium from their original undisturbed positions when a wave passes through the medium is called amplitude of the wave.
Frequency:
The number of complete waves or cycles produced in one second is called frequency of the wave.
________________________________________________________
Solution:
a) the loudness of sound is determined by the amplitude of sound waves.
Greater the amplitude of sound waves louder the sound will be.
The loudness of a sound is measured in decibel. It is written as dB.
b) the pitch of a sound is determined by the frequency of the vibration of the sound producing source.
Greater the frequency of a sound the higher will be its pitch.
================================================================
Hope this will help you...
Similar questions