Question

Two sounds of 610Hz and 620Hz are played together. The frequency you hear will be ___. The beat frequency is ___

Answer 1

Step-by-step explanation

The beat frequency is equal to the complete value of the alteration in the frequency of the two waves,it can be calculated by using the expression

`f_(beat)=\lvert{{f_1}-f_2}\rvert`

so

Step 1

a)let

`\begin{gathered} f_1=610\text{ Hz} \\ f_2=620\text{ Hz} \end{gathered}`

b) replace and calculate

`\begin{gathered} f_(beat)=\lvert{{f_1}-f_2}\rvert \\ f_(beat)=\lvert610\text{ Hz-620Hz}\rvert \\ f_(beat)=10\text{ Hz} \end{gathered}`

so

the beat frequency is 10 HZ

Step 2

the frequency yuo will detect is the difference of the frequency, so , teh frequency beat, so

the frequency you hear will be 10 Hz

I hope this helps you