Chapter SH, Problem 10.9APP

To determine

To calculate: Beat frequency.

Answer to Problem 10.9APP

Beat frequency is $\underset{\_}{\text{3 Hz}}$ .

Explanation of Solution

Given:

Frequency of first flute = $443\text{ Hz}$

Frequency of second flute = $440\text{ Hz}$

Formula used:

Beat frequency is given by,

  $f_b=|f_2-f_1|$

where $f_1$ and $f_2$ are two different frequencies.

Calculation:

Beat frequency is calculated as:

  $\begin{array}{l}{f}_b=|f_2-f_1|\\ f_b=|443-440|\\ f_b=3\text{ Hz}\end{array}$

Conclusion:

Beat frequency is $\underset{\_}{\text{3 Hz}}$ .