A Vibrating Tuning Fork Is Held Over a Water Column

question 23

Multiple Choice

A vibrating tuning fork is held over a water column with one end closed and the other open. As the water level is allowed to fall, a loud sound is heard for water levels separated by 17 cm. If the speed of sound in air is 340 m/s, the frequency of the tuning fork is:

• A) 500 Hz
• B) 1000 Hz
• C) 2000 Hz
• D) 5780 Hz
• E) 578,000 Hz

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