A transverse wave is represented by the equation
`y=y_0sin.(2pi)/(lamda)(vt-x)`
For what value of `lamda`, the maximum particle velocity equal to two times the wave velocity?
A. `lamda=2piy_(0)`
B. `lamda=piy_(0)//3`
C. `lamda=piy_(0)//2`
D. `lamda=piy_(0)`