The Air in a Closed Organ Pipe Vibrates as Shown

question 30

Multiple Choice

The air in a closed organ pipe vibrates as shown. The length of the pipe is 3.0 m. The frequency of vibration is 80 Hz. The speed of sound in the pipe is approximately

• A) 80 m/s
• B) 0.16 km/s
• C) 0.24 km/s
• D) 0.32 km/s
• E) 0.96 km/s

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