A travelling wave is described by the equation (y(x, t)=\[0.... | Physics | SolveeIt | Solveeit

Today, August 18

Question

A travelling wave is described by the equation $y(x, t)=[0.05 \sin (8 x-4 t)] m$ The velocity of the wave is : [all the quantities are in SI unit]

A

$4 \,ms ^{-1}$

B

$8 \,ms ^{-1}$

C

$0.5 \, ms ^{-1}$

D

$2 \,ms ^{-1}$

Answer

$0.5 \, ms ^{-1}$

Explanation

Solution

From the given equation k=8m−1
and ω=4rad/s Velocity of wave =kω
v=84=0.5m/s