A wave has a wavelength of 125 meters is moving at a speed of 20 m/s. What is it’s frequency?

The frequency of the wave moving at the given speed is 0.16 Hertz.

Given the data in the question;

Frequency;

To determine the frequency of the wave; we use the expression for the relations between wavelength, frequency and speed of wave.

Where is wavelength, f is frequency and v is speed of wave

We substitute our values into the equation

Therefore, the frequency of the wave moving at the given speed is 0.16 Hertz.

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0.16Hz

Explanation:

Given that:

wavelength (λ) = 125 meters

speed (V) = 20 m/s

frequency (F) = ?

Recall that frequency is the number of cycles the wave complete in one second. And its value depends on the wavelength and speed of the wave.

So, apply the formula V = F λ

Make F the subject formula

F = V / λ

F = 20 m/s / 125 meters

F = 0.16 Hz

Thus, the frequency of the wave is 0.16 Hertz.

waves moving from a fast medium to a slow medium will experience a reflection as light travels more slowly than red light. total internal reflection occurs when the critical angle is.

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