What is Noise?

By Sandeep Kumar

 Noise

       When a part of atmosphere is compressed suddenly, a sound is produced. These sound waves travels through the air. When sound waves are non-periodic, irregular and of short duration, they produce a displeasing effect and such a sound is known as noise. 
                   The wavelength of a sound wave can be defined as the distance between like points on two successive waves or the distance between two successive compression, travelling with a uniform velocity v, moves through a distance of one wavelength in the time period T, 
 

       

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