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AP® Physics 1 & 2

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Moderate

Sound Wavelengths and Beats

APPH12-D5@X8I

Students are experimenting with sound waves and measure that one wave has a wavelength of $1.22\text{ meters}$ and the second has a wavelength of $1.23\text{ meters}$.

Based on this data, predict what beat frequency is heard?

A

$0.01\text{ Hertz}$

B

$1.5\text{ Hertz}$

C

$2.0\text{ Hertz}$

D

$280\text{ Hertz}$