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| 1. |
The beats are not heard if the difference in frequencies of the two sounding notes is more than 10. Why? |
| Answer» SOLUTION :If the difference in frequencies of the two waves is more than 10, we shall hear more then 10 beats for second. Due to PERSISTENCE of hearing, our ear is not able to distinguish between two sounds as separate. If the time internal between them is LESS than `(1/10)` th of a second. HENCE beats heard will not be distinct if the NUMBER of beats produced per second is more than 10. | |