A cylindrical tube open at both ends has fundamental frequency in air

PHYSICS · Single correct · CBSE · Physics · Waves · Waves

Problem

A cylindrical tube open at both ends has fundamental frequency

f

in air. The tube is dipped vertically in water so that half of it is in water. What is the fundamental frequency of the air column now? (1)

\frac{f}{2}

(2)

\frac{3f}{4}

(3)

f

(4)

2f