Question

Question 10
The given graph shows the displacement versus time relation for a disturbance travelling with velocity of $1500m{s}^{-1}$ . Calculate the wavelength of the disturbance

Answer 1

Given, V = $1500m{s}^{-1}$

From the graph
Time period, $T=2\times {10}^{-6}s$

Frequency, $v=\frac{1}{T}=\frac{1}{2\times {10}^{-6}}Hz$
Wavelength, $\lambda =\frac{V}{v}=V\times T$
$\lambda =1500\times 2\times {10}^{-6}$
$\lambda =3\times {10}^{-3}m$