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A vibrating tuning fork of frequency 34...

A vibrating tuning fork of frequency 340 Hz is held over a cylindrical pipe. The length of the pipe is 120 cm . Now water is slowly poured into it. What should be the water level at which resonance will occur ? Velociy of sound in air ` = 340 m*s^(-1)` .

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The correct Answer is:
45 cm
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