High School

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A wave travels at a speed of [tex]$242 \, \text{m/s}$[/tex]. If the distance between crests is [tex]$0.11 \, \text{m}$[/tex], what is the frequency of the wave? Use [tex][tex]$f=\frac{v}{\lambda}$[/tex][/tex].

A. 27 Hz
B. 0.00045 Hz
C. 2200 Hz
D. 190 Hz

Answer :

We need to find the frequency of the wave using the formula:

[tex]$$
f = \frac{v}{\lambda}
$$[/tex]

where:
- [tex]$v = 242 \, \text{m/s}$[/tex] is the speed of the wave,
- [tex]$\lambda = 0.11 \, \text{m}$[/tex] is the distance between consecutive crests (wavelength).

Substitute the given values into the formula:

[tex]$$
f = \frac{242}{0.11}
$$[/tex]

Performing the division:

[tex]$$
f = 2200 \, \text{Hz}
$$[/tex]

Thus, the frequency of the wave is [tex]$2200 \, \text{Hz}$[/tex], which corresponds to option C.

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