A) \[\frac{3}{4}\]
B) \[\frac{4}{3}\]
C) \[\frac{1}{2}\]
D) 2
Correct Answer: C
Solution :
For open pipe \[{{f}_{1}}=\frac{v}{2l}\] and for closed pipe \[{{f}_{2}}=\frac{v}{4\times \left( \frac{l}{4} \right)}=\frac{v}{l}=2{{f}_{1}}\] \[\Rightarrow \] \[\frac{{{f}_{1}}}{{{f}_{2}}}=\frac{1}{2}\]You need to login to perform this action.
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