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CBSE Class 11-science Answered

what is beat?
Asked by Dibyajyoti Acharjee | 28 Dec, 2011, 04:18: PM
Expert Answer
When two sound waves of slightly different frequencies , travelling in a medium along the same direction , superimpose on each other, the intensity of the resultant sound at a particular position rises and falls regularly with time. this phenomenon of regular variation in the intensity of sound with time at a particular position , when two sound waves of nearly equal frequencies superimpose on each other is called beats.
Answered by | 28 Dec, 2011, 08:28: PM
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