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= 2 pi xx 10^(-2)m`
B. `lambda = 10^(-3) m`
C. `n=(10)^(3)/(2pi) Hz`
D. `n=10^(4) Hz`
