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Questions  

A student is performing the experiment of resonance column. The diameter of the column tube is 4 cm. The frequency of the tuning fork is 512 Hz. The air temperature is 38°C in which the speed of sound is 336 m/s. The zero of the meter scale coincides with the top end of the resonance, column tube. When the first resonance occurs, the reading of the water level in the column is

a
14.0 cm
b
15.2 cm
c
6.4 cm
d
17.6 cm

detailed solution

Correct option is B

With end correction,f=nv4(I+e) (where n = 1, 3..)=nv4(l+0.6r)Because e=0.6 r, where r is radius of pipe.l=v4f-0.6r=336×1004×512-0.6×2cm= 15.2 cm

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Similar Questions

A tube of certain diameter and of length 48 cm is open at both ends. Its fundamental frequency of resonance is found to be 320 Hz. The velocity of sound in air is 320 m/s. One end of the tube is now closed, considering the effect of end correction, calculate the lowest frequency of resonance for the tube (in Hz). 


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