Answer to Question #166958 in Physics for Aashika Premkumar Bavitha

Question

A ripple tank produces water waves through the up and down movement of a wooden bar. The bar moves up 20 times in 4 s. The distance between each water wave is 0.04 m 

1. Calculate  the frequency of the waves.
2. State the wavelength of the waves.

            

3.Calculate the speed of the waves

4.The ripple tank is 0.8m long. Calculate the time it takes a water wave to travel from one end to the other. 

Answer 1

1)

$f=\frac{20}{4}=5\ Hz$

2)

$\lambda=0.4\ m$

3)

$v=\lambda f=(0.4)(5)=2\frac{m}{s}$

4)

$t=\frac{l}{v}=\frac{0.8}{2}=0.4\ s$