Answer:
[tex]f_{beat}=f_2-f_1=353Hz -350Hz=3Hz[/tex]
Explanation:
When there are two waves with similar frequency, the superposition of these waves create a new wave with a particular beat. The beat frequency from this constructive superposition is equal to the value of the difference in frequency of the two waves.
[tex]f_{beat}=f_2-f_1=353Hz -350Hz=3Hz[/tex]
