A vibrating tuning fork of 850 Hz is held above a tube filled with water.The first and third resonances occur when the water level is lowered by 8.8 cm and 47.6 cm from the top of the tube.If there is a small end correction that adds a small extra length $\Delta$L to the effective length of the air column,calculate $\Delta$L.Assume the speed of sound to be 330 m/s.
A)0.2 cm
B)0.9 cm
C)0.4 cm
D)0.6 cm
E)1.1 cm

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The Answer of A vibrating tuning fork of 850 Hz is held above a tube filled with water.The first and third resonances occur when the water level is lowered by 8.8 cm and 47.6 cm from the top of the tube.If there is a small end correction that adds a small extra length $\Delta$L to the effective length of the air column,calculate $\Delta$L.Assume the speed of sound to be 330 m/s.
A)0.2 cm
B)0.9 cm
C)0.4 cm
D)0.6 cm
E)1.1 cm

A Vibrating Tuning Fork of 850 Hz Is Held Above Δ\DeltaΔ

A Vibrating Tuning Fork of 850 Hz Is Held Above $\Delta$