Question

Calculate the period of a wave, which is having the wavelenght $17m$ and wave velocity $340m/s$.

Answer 1

$V=n\lambda$

$n=\frac{V}{\lambda },n=\frac{340}{17}=20$ Hz

Time period $\left(T\right)$ frequency $\left(f\right)$ of the wave are related by the equation.
$T=\frac{1}{n}$

$T=\frac{1}{20}=0.05s$