# Can anybody tell me the difference between these two velocity?

In Waves i earlier studied that

velocity of the wave is given $$wa\sqrt{1-y^2}$$

w= angular velocity a=amplitude of the wave y=post. of wave at any time

and now when i am studying wave optics velocity is given by

$$ƒ*Λ$$ f=frequency of the wave ^=wavelength of the wave

are these velocity anyhow related?

• This should go without saying but define your variables. – Señor O Nov 10 at 3:46

$$wa\sqrt{1-y^2}$$ is the velocity of SHM while $$ƒ*Λ$$ - velocity of on any wave