Published by:
CGP EDU Academic Team
Published on: August 23, 2026
A tuning fork of frequency 
resonates in the fundamental mode with an air column of length 
in a cylindrical tube closed at one end. When water is slowly poured in it, the minimum height of water required for observing resonance once again is cm. (Velocity of sound in air is 
)
Text Solution
Verified by ExpertsThe correct answer is:
50
(50) Assumption: Ignore word "fundamental mode" in question.
First resonating length 
Second resonating length 
Third resonating length 
Height of water required 
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