A transverse sinusoidal wave of amplitude `a`, wavelength `lambda` and frequency `f` is travelling on a stretched string. The maximum speed of any point in the string is `v//10`, where `v` is the speed of propagation of the wave. If `a = 10^(-3)m` and `v = 10ms^(-1)`, then `lambda` and `f` are given by
A. `lambda = 2pi xx 10^(-2)m`
B. `lambda = 10^(-2)cm`
C. `f = 10^(3)/(2pi)Hz`
D. `f = 10^(4)Hz`
