The sound from a single source can reach point O by two different paths. One path has a length 20.0 m and the second path has a length 21.0 m. The sound destructively interferes at point O

What is the minimum frequency of the source if the speed of sound is 340 m/s? A)

340 Hz

B)

6800 Hz

C)

520 Hz

D)

680 Hz

E)

170 Hz


E

Physics & Space Science

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