The superposition of two waves
?
and
?
at the location x = 0 in space results in
A. beats at a beat frequency of 3 Hz.
B. a pure tone at a frequency of 153 Hz.
C. a pure tone at a frequency of 156 Hz.
D. beats at a beat frequency of 6 Hz.
E. beats at a frequency of 156 Hz.
Answer: D
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