${y_1} = 0.05\,\cos \,\left( {0.50\,\pi x - 100\,\pi t} \right)$
${y_2} = 0.05\,\cos \,\left( {0.46\,\pi x - 92\,\pi t} \right)$
તો તેનો વેગ $m/s$માં કેટલો મળે?
\(\mathrm{y}(\mathrm{x}, \mathrm{t})=\mathrm{A} \cos \left(\frac{\omega}{\mathrm{V}} \mathrm{x}-\omega \mathrm{t}\right)\)
From any of the displacement equation Say \(y_1\)
\(\frac{\omega}{V}=0.50 \pi \text { and } \omega=100 \pi\)
\(\therefore \frac{100 \pi}{V}=0.5 \pi\)
\(\therefore \mathrm{V}=\frac{100 \pi}{0.5 \pi}=200 \mathrm{m} / \mathrm{s}\)