Question

The number of oscillation / vibration made by a vibrating body in 25sec is 50 find the frequency of the vibrating body

Answer 1

$$\begin{gathered} \mathrm{No}.\mathrm{of}\mathrm{vibrations}=50 \\ \mathrm{Time}\mathrm{interval}=25\mathrm{s} \\ \mathrm{Frequency}=\frac{\mathrm{No}.\mathrm{of}\mathrm{vibrations}}{\mathrm{time}\mathrm{interval}} \\ =\frac{50}{25} \\ =2\mathrm{vibrations}/\mathrm{s} \end{gathered}$$