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| 1. |
Explain the beat phenomenon. |
| Answer» SOLUTION :When two or more waves superimpose each other with slightly different frequencies, then a sound of periodically varying amplitude at a POINT is observed. This PHENOMENON is KNOWN as beats. The number of amplitude maxima per second is CALLED beat frequency . If we have two sources, then their difference in frequency gives the beat frequency. Number of beats per second n `= |f_(1) - f_(2)|` per second . | |