Question

Equation of progressive wave is $y = A\text{ sin}(160t-0.5x)$. Let the speed of the wave be 10x then, find x.

Answer 1

The correct answer is 32
From given equation,
ω = 160 and k = 0.5
∴ Speed of wave,
$v=\frac{\omega}{k}$
$=\frac{160}{0.5}=320\ \text{m/s}$