First slide

Travelling wave

Question

If the wave equation $y = 0 .08 \sin \frac{2 π}{λ} (200 t - x)$ then the velocity of the wave will be

Easy

A

$400 \sqrt{2}$
B

$200 \sqrt{2}$
C

400
D

200

Solution

Comparing with standard wave equation
$y = asin \frac{2 π}{λ} (vt - x)$ , we get, $v = 200 m / s .$

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