Two tuning forks `A and B` are sounded together and `8 beats//s` are heard . `A` is in resonance with a column of air `32 cm` long in a pipe closed at one end and `B` is increased by one `cm`. Calculate the frequency of fork .

Two tuning forks `A and B` are sounded together and `8 beats//s` are h

1.	Two tuning forks `A and B` are sounded together and `8 beats//s` are heard . `A` is in resonance with a column of air `32 cm` long in a pipe closed at one end and `B` is increased by one `cm`. Calculate the frequency of fork .
Answer» Correct Answer - `264 Hz , 256 Hz` `n_(A) - n_(B) = 8` Also `n_(A) = (v)/( 4 (0.32)) , n_(B) = (v)/( 4 (0.33))` `(v)/( 4 (0.32)) - (v)/( 4(0.33) = 8` `v = 338 m//s` `:. n_(A) = (v)/( 4 xx 0.32) = (338)/(4 xx 0.32) = 264 Hz`. `n_(B) = n_(A) - 8 = 256 Hz`.

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Two tuning forks `A and B` are sounded together and `8 beats//s` are heard . `A` is in resonance with a column of air `32 cm` long in a pipe closed at one end and `B` is increased by one `cm`. Calculate the frequency of fork .

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