In a resonance tube experiment, a tube fixed length is closed at one end and several tuning forks of increasing frequency used to obtain resonance at the op...

Assessment: JAMB UTME - Physics - 1983 Subject: Physics

Question 1 Report

In a resonance tube experiment, a tube fixed length is closed at one end and several tuning forks of increasing frequency used to obtain resonance at the open end. If the tuning fork with the lowest frequency which gave resonance had a frequency \(f_1\) and the next tuning fork to give resonance had a frequency \(f_2\), find the ratio \(\frac{f^2}{f^2}\).

8

3

2

1

2

1

3

Answer Details

λ_{1}

= 4L1 and

λ_{2}

= -L1

F $λ$ = velocity

F1 x $λ_{1}$ = F2 x
$λ_{2}$ ; F1 x 4 $λ_{1}$ = F2 x - $λ_{2}$

= $\frac{F_{2}}{F_{1}}$ = 3

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