There Are Two Identical Organs with Pipes Having Fundamental Frequencies

There are two identical organs with pipes having fundamental frequencies of 264.0 Hz at 20°C. One organ is located at the front of the auditorium where the temperature is 20°C and one at the back where the temperature in 25.0°C. What is the beat frequency when the two organs sound this note simultaneously?

A) zero since it is the same note
B) 2.24 Hz
C) 31.2 Hz
D) 4.51 Hz

Correct Answer:

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