Respuesta :

Answer:

125 Hz

Explanation:

The frequency of the wave can be found by using the formula

[tex]f = \frac{c}{ \lambda} \\ [/tex]

where

c is the velocity of the wave

[tex] \lambda[/tex] is the wavelength

From the question we have

[tex]f = \frac{250}{2} = 125 \\ [/tex]

We have the final answer as

125 Hz

Hope this helps you

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