Question

application of beats

Answer 1

Applications of Beats: Beats are used in tuning musical instruments like sitar, violin etc. ... In Sonometer experiment,beats can be used to adjust the vibrating length between the two bridges. To find the frequency (N) of the given tuning fork beats can be used.

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Answer 2

Answer:

Explanation:

When two sound waves of equal or nearly equal intensity and nearly equal frequencies originate at the same time and travel along the same direction, the loudness of the resulting sound is not uniform; rather it rises and falls at a particular interval of time. These periodic variations of loudness are called beats.

There are three applications of beats, viz –

(a) Determination of unknown frequency of tuning fork.

(b) Determination of poisonous gases in mines.

(c) Determination of the tone of musical instruments.

Determination of unknown frequency

Applying the phenomenon of beat unknown frequency ‘n’ of a tuning fork can be measured. A tuning fork of known frequency is chosen by trial and error which produces beat with this tuning fork. If the known frequency of the tuning fork is n1, then unknown frequency is almost equal to ‘n’. Now number of beats in is counted.

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