Question

the wavelength of the wave is 20cm the wave velocity is 24ms-1.
calculate a) frequency and b)time period

Answer 1

Dear Student ,
Here in this case from the given data we can write that ,
$$\begin{gathered} Wavevelocity,V=frequency\left(\nu \right)\times wavelength\left(\lambda \right) \\ \Rightarrow Frequency\left(\nu \right)=\frac{24}{20}=1·2Hz \\ Andtimeperiod=T=\frac{1}{\nu }=\frac{1}{1·2}=0·83s \end{gathered}$$
Regards