Applied Physics I: Chapter 5: Oscillations and Waves - Ultrasonics
Classification of Sound
Sound waves are mechanical vibrations of smaller amplitude. Sound waves are classified into three categories based on their frequencies.
CLASSIFICATION
OF SOUND
Sound
waves are mechanical vibrations of smaller amplitude. Sound waves are
classified into three categories based on their frequencies.
(i)
Sound waves of frequencies below 20 Hz are termed as Infrasonics [Inaudible]
(ii)
Sound waves of frequencies above 20,000 Hz are termed as Ultrasonics [Inaudible]
(iii)
Sound waves of frequencies 20 Hz to 20,000 Hz are termed as audible sound.
Further
the audible sound is classified as 'musical
sounds' and 'noises'. The sounds
which produces pleasing effect on the ear are called musical sound and that
which produces jarring and unpleasing effect are called noises.
Applied Physics I: Chapter 5: Oscillations and Waves - Ultrasonics : Tag: Applied Physics : - Classification of Sound
Applied Physics I: Chapter 5: Oscillations and Waves - Ultrasonics
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