Chapter 9.2, Problem 7PP

To determine

The speed of the wave.

Answer to Problem 7PP

The speed of wave is $1500\text{m}/\text{s}$ .

Explanation of Solution

Given info:

Frequency of the wave, $n=250\text{Hz}$

Wavelength of the wave, $\lambda =6\text{m}$

Formula used:

The speed of a wave is,

$v=n\lambda$

Where

• $n$is frequency.
• $\lambda$is wavelength of the wave.

Calculation:

Substitute the given values in the above equation.

  $\begin{array}{c}v=250\times 6\\ =1500\text{m}/\text{s}\end{array}$

Conclusion:

Therefore the speed of wave is $1500\text{m}/\text{s}$ .