Question
Mon January 02, 2012 By: Shashank Shekhar
 

a tuning fork of freequency 340hz is vibrated just above a cylindrical tube of length 120cm. water is slowly poured in the tube. if the speed of sound is 340m/s then the minimum height of water required for resonance is?

Expert Reply
Tue January 03, 2012
n1=v/4l
l=340/4*340
  =25 cm
next 75 cm,125cm....
so 75 cm air column value is for resonance.
so water column will be of =120-75=45 cm.
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