A tuning fork of known frequency is held at the open end of

Last updated: 6/10/2023

A tuning fork of known frequency is held at the open end of a long tube which is dipped into water Th tuning fork of frequency 165 Hz resonates for the first time when air columns have lengt 50 0 5 cm and for second time when air columns have length 150 0 1 cm If the speed sound in air is 330 a 0 99 m s then the value of a is