Amplitude Formula Definition with Example

Amplitude Formula Definition with Example

Physics Formula

Amplitude Formula definition with Example

 

Amplitude Formula Definition – The amplitude of a variable is a measure of its change over a single period. The maximum height observed in the wave is called as Amplitude. It is denoted by A and is given in decibels (dB). The sine wave is represented as Where A is amplitude and ω is angular frequency. The Amplitude Formula is given by

Amplitude Formula Example

Question 1: Find the amplitude of the wave if the wave is represented by y = 3 sin ωt ?
Solution:

Given: y = 3 sin ω t
The equation is of the form y = A sin ωt. Hence the amplitude is A = 3.
Question 2: Find the amplitude of the wave if a wave travels a distance of 0.5 m and has a frequency of 5 Hz.
Solution:

Given: Distance D = 0.5 m, Frequency f = 5 Hz
The amplitude is given by A = A = D/F
                                         = 0.5/5
= 0.1 decibels.

 

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