A wave travelling along the x-axis is described by the equation `v(x, t) = 0.005 cos(alpha x - betat)`. If the wavelength and the time period of the wave are `0.08m` and `2.0s`, respectively, then `alpha and beta` in appropriate units are

Explanation

In the given equation `alpha` is wave constant `k=(2pi)/(lambda)=(2X3.14)/(0.08)=78.5m^(-1)` and is angular frequency `omega=(2pi)/(T)=(2X3.14)/(2)=3.14rad//sec`