Wave Motion 2 Question 36

36. A cylinder resonance tube open at both ends has fundamental frequency f in air. Half of the length of the tube is dipped vertically in water. The fundamental frequency to the air column now is

(1992, 2M)

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Answer:

Correct Answer: 36. f

Solution:

  1. Fundamental frequency of open pipe f=v2l and fundamental frequency of closed pipe,

f=v4(l/2)=v2l or f=f



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