If `l_1 and l_2` are the lengths of air column for two air column for two consecutive resonance position when a turning fork of frequency f is sounded in a resonance tube, then end correction is :

If l_(1) and l_(2) are the lengths of air column for the first and second resonance when a tuning fork frequency n is sounded on a resonance tube, there the distance of the antinode from the top end of resonance tube is

If l_(1) and l_(2) are the lengths of air column for the first and second resonance when a tuning fork frequency n is sounded on a resonance tube, there the distance of the antinode from the top end of resonance tube is

A resonance air column of length 20 cm resonates with a tuning fork of frequency 250 Hz . The speed of sound in air is

A resonance air column of length 20 cm resonates with a tuning fork of frequency 250 Hz . The speed of sound in air is

The shortest length of resonating air column closed at one end is 7 cm when a tuning fork of frequency 480Hz is used.If inner diameter of the tube is 3 cm, find velocity of sound in air.