Question: A pipe open at both ends has a fundamental frequency $\mathrm{f}$ in air. The pipe is dipped vertically in water so that half of it is in water. The fundamental frequencty of the air column is now :-
$\mathrm{f}$
$\frac{\mathrm{f}}{2}$
$\frac{3 f}{4}$
$2 f$
Correct Option: 1
Solution: