The ends of the prongs of a tunning forks originally in unison with a fork B of frequency 512 are filled, and the forks produce 5 beat/s when sounded

Question

The ends of the prongs of a tunning forks originally in unison with a fork B of frequency 512 are filled, and the forks produce 5 beat/s when sounded

The ends of the prongs of a tunning forks originally in unison with a fork B of frequency 512 are filled, and the forks produce 5 beat/s when sounded together. What is the pitch of A after filling ?
A. 512 Hz
B. 517 Hz
C. 507 Hz
D. 514.5 Hz

Monjur Alahi

5 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - B
`n_(A) = n_(B)`
The prongs of the fork A is filed with the fork B produces 5 beats/second
`n_(A) = n_(B) +- 5`
`= 512 +- 5`
`=517 or 507 Hz`
After filling frequency increases,
`:. n_(A) = 517Hz`

5 views Answered 2023-02-05 15:29