Sound – Study Material
Sound requires a definite time to travel from one point to another in a medium. Its velocity is always smaller than the velocity of light.Velocity of sound is different in different media. It has the maximum value in solids. Which have higher bulk modulus, and least in gases.
Synopsis
- Characteristics of sound
- Classification of sound
- Pitch
- Loudness
- Factors affecting intensity of loudness of sound
- Measurement of loudness and phon
- Timbre
- Equation of Simple Harmonic Motion
Characteristics of sound
- Sound is a form of energy
- Sound is produced by a vibrating body.
- Sound requires a material medium for its propagation. Sound can be transmitted through solids, liquids and gases.
Classification of sound
Classified on the basis of frequency, as
- Infra sound
- Audible sound
- Ultrasound
Pitch
The pitch of a musical sound is determined by its frequency but it is also a function of its intensity and waveform. Greater is the frequency of a muscial note, higher is the pitch and viceversa. The frequency and pitch are two different things.
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TNEB TANGEDCO AE Basic Engineering Study Materials download
TNEB TANGEDCO AE Study Materials download
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