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Stella [2.4K]
3 years ago
10

You hear 2 beats per second when two sound sources, both at rest, play simultaneously. The beats disappear if source 2 moves tow

ard you while source 1 remains at rest. The frequency of source 1 is 500 Hz. The frequency of source 2 is...
A) 498 Hz.

B) 496 Hz.

C) 502 Hz.

D) 500 Hz.

E) 504 Hz.
Physics
1 answer:
Genrish500 [490]3 years ago
3 0

Answer:

Option A

498 Hz

Explanation:

Beat frequency is given by F1-F2 where F is the frequency of source while F2 is frequency that disappear as one moves towards the source. when a source moves towards observer the frequency increases

Substituting 500 for F1 and 2 for F2 then

Beat frequency is 500-2=498 Hz

Option A

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