A long glass tube is held vertically in water. A tuning fork is struck and held over the tube.
Channel: Doubtnut
Date: 23/08/2020

A long glass tube is held vertically in water. A tuning fork is struck and held over the tube. Strong resonances are observed at two successive lengths `0.50 m` and `0.84 m` above the surface of water. If the velocity of sound is `340 m//s`, then the frequency of the tuning fork is