Question

A wave has a wavelength of 5 m and a speed of 65 m/s. What is the frequency of this wave in Hz?

Answer 1

Answer:

frequency = velocity/wavelength

= 65/5

= 13 Hz

Answer 2

Answer:

The wave's frequency, $f$, having wavelength $5m$ and speed $65m/s$ calculated is $13Hz$.

Explanation:

Given,

The wave's given wavelength, $\lambda$ = $5m$

The wave's speed, v = $65m/s$

The wave's frequency, $f$ =?

Now, as we know,

• The speed of the wave is the product of wavelength and frequency.
• v = $\lambda f$

Therefore,

• $f = \frac{v}{\lambda }$

After putting the given values of the speed and the wavelength in the equation, we get:

• $f = \frac{65}{5 }$ = $13Hz$

Hence, the frequency of the wave calculated is $13Hz$.