A 1024 Hz tuning fork is dangled at the end of a string such that its center of mass is 1.2 m below the point at which the other end of the string is attached to door frame, making a pendulum of sorts. The tuning fork may be treated as a point mass for the purposes of this problem. If the pendulum is brought to an amplitude of 
and released, what is the range of frequencies heard by an observer standing in the plane of the pendulum's motion? The speed of sound in this case is 340 m/s.
A. 1015 Hz to 1033 Hz
B. 1012 Hz to 1036 Hz
C. 1010 Hz to 1038 Hz
D. 1020 Hz to 1028 Hz
D. 1020 Hz to 1028 Hz
Physics & Space Science
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