Question
Download Solution PDFBeats are the result of
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCONCEPT:
Beats:
- When two sound waves of nearly same frequencies, travelling in a medium, 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 is called beats.
- Beat frequency: The number of beats produced per second is called a beat frequency.
EXPLANATION:
- Beats are the interference pattern between two sounds of slightly different frequencies, perceived as a periodic variation in volume whose rate is the difference between the two frequencies.
- The volume varies as the sounds alternately interfere constructively and destructively. Therefore option 2 is correct.
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