Two tuning forks of frequencies n(1) an...

Two tuning forks of frequencies `n_(1)` and `n_(2)` produces n beats per second. If `n_(2)` and n are known, `n_(1)` may be given by

`(n_(2))/(n)+n_(2)`

`n_(2)n`

`n_(2)pm n`

`(n_(2))/(n)-n_(2)`

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