A tanserve wave is repsemted by the equation `y=2sin(30t-40x)` and the measerments of distances are in meters, then the velocity of propagation is

Options

A. 15 `ms^(-1)`
B. 0.75 `ms^(-1)`
C. 3.75 `ms^(-1)`
D. 300 `ms^(-1)`

Answer

B

Explanation

The transverse wave is given by y=2sin(30t-40x)
The standard transversse wave is `y=Asin(omegat-kx)`
On comparing, we get `v=(omega)/(k)=(30)/(40)=0.75m//s`