question_answer

A cylindrical resonance tube, open at both ends, has a fundamental frequency fin air. If half of the length is dipped vertically in water, the fundamental frequency of the air column will be

A) \[\frac{3f}{2}\]             

B)        \[2f\]

C) \[f\]                  

D)        \[\frac{f}{2}\]

Correct Answer: C

Solution :

[c] From the figure it is clear that in both the cases wavelength is same. So, frequency of fundamental tone will also be same. Hence the answer will be [c].