Question

Define amplitude.Establish the relationship between frequency and the time period of time sound wve

Answer 1

Amplitude :- It is the max disturbance in the medium on either side of the mean position............Sound that is perceptible by humans has frequencies from about 20 Hz to 20,000 Hz. In air at standard temperature and pressure, the corresponding wavelengths of sound waves range from 17 m to 17 mm. Sometimes speed and direction are combined as a velocity vector; wave number and direction are combined as a wave vector.
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Answer 2

Amplitude- the maximum displacement of a vibrating body from its rest position is called amplitude. It is denoted by A. SI unit of amplitude is metre.
Let T= Time period of vibrating body
No of vibrations completed in T seconds = 1
No of vibrations completed in 1 second = 1/T
No of vibrations completed in 1 second = Frequency
FREQUENCY =1/Time period
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