A 30 Cm Long Organ Pipe Is Filled with Air

question 77

Multiple Choice

A 30 cm long organ pipe is filled with air and is open at one end and closed at the other. The speed of sound in air at 0°C is 331 m/s. What is the wavelength of the third mode of vibration?

• A) 48 cm
• B) 36 cm
• C) 30 cm
• D) 24 cm
• E) 12 cm

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