A glass tube of 1.0m length is filled with water can be drained out slowly at the bottom of the tube. If a vibrating tunning fork of frequency 500 c/s is brought at the upper end of the tube and the velocity of sound is 330 m/s, then the total number of resonance obtained will be-
4
3
2
1
Length of air column at resonance can be etc or 0.165m, 0.495m, 1.1155m. But, length of tube is only 1m. hence first three resonances will be obtained.
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