A 400 Cm Long Organ Pipe Is Filled with Air and and Is

A 40.0 cm long organ pipe is filled with air and is open at both ends.The velocity of sound in air at 0 $^{\circ}$ C is 331 m/s.If the temperature of the air increases by 10 $^{\circ}$ C,then what is the frequency of the fundamental mode?

A) 367 Hz
B) 395 Hz
C) 401 Hz
D) 421 Hz
E) 480 Hz

Correct Answer:

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