Answer :
Answer:
F. Either B or C
Explanation:
The beat frequency is the difference of two frequencies of two waves.
Here, one wave has frequency 610 Hz and the beat frequency is 3 beats per second.
It is not mentioned which has a higher frequency. So, there are two possiblities.
[tex]\Delta f=|610-613|=3[/tex]
or
[tex]\Delta f=|610-607|=3[/tex]
Hence, the frequency of the other wave is 613 or 607.