A 60.0 cm long organ pipe is filled with air at 15°C and is open at both ends. The speed of sound in air at 0°C is 331 m/s. Another 60.0 cm long organ pipe is filled with air at 25.0°C and is open at both ends. What is the beat frequency between the second modes of the two organ pipes?
A) 9.20 Hz
B) 9.33 Hz
C) 9.54 Hz
D) 9.75 Hz
E) 9.99 Hz

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The Answer of A 60.0 cm long organ pipe is filled with air at 15°C and is open at both ends. The speed of sound in air at 0°C is 331 m/s. Another 60.0 cm long organ pipe is filled with air at 25.0°C and is open at both ends. What is the beat frequency between the second modes of the two organ pipes?
A) 9.20 Hz
B) 9.33 Hz
C) 9.54 Hz
D) 9.75 Hz
E) 9.99 Hz

A 600 Cm Long Organ Pipe Is Filled with Air at at 15°C