Question

A wave pulse on a string moves a distance of $8m$ in $0.05s$.

(i) Find the velocity of the pulse.

(ii) What would be the wavelength of the wave on the string if its frequency is $200Hz$?

Answer 1

Step 1: Given data

Distance =$8m$

Time= $0.05s$

Step 2: Find the velocity of the pulse.

$Velocity=\frac{dis\tan ce}{time}$

=$\frac{8}{0.05}$

=$160m{s}^{-1}$

Step 3: Find the wavelength of the wave in the string.

$Wavelength=\frac{velocity}{frequency}$

=$\frac{160}{200}$

= $0.8m$