A cylindrical tube (L = 125 cm) is resonant with a tuning fork of frequency 330 Hz. If it is filling by water then to get resonance again, minimum length of water column is (`V_air` = 330 m/s) -A. 50 cmB. 60 cmC. 25 cmD. 20 cm

A cylindrical tube (L = 125 cm) is resonant with a tuning fork of freq

1.	A cylindrical tube (L = 125 cm) is resonant with a tuning fork of frequency 330 Hz. If it is filling by water then to get resonance again, minimum length of water column is (`V_air` = 330 m/s) -A. 50 cmB. 60 cmC. 25 cmD. 20 cm
Answer» Correct Answer - A `f=((2n-1)v)/(4l)` `l=((2n-1)v)/(4f)=((2n-1)xx330)/(4xx330)=((2n-1))/(4)` `l=1/4m, 3/4m = 25cm, 75cm.` `therefore` Minimum height of water column =125-75=50cm

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A cylindrical tube (L = 125 cm) is resonant with a tuning fork of frequency 330 Hz. If it is filling by water then to get resonance again, minimum length of water column is (`V_air` = 330 m/s) -A. 50 cmB. 60 cmC. 25 cmD. 20 cm

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