Question

while fishing, you notice that eight crests pass a given point in a time interval of 10s. You approximate the distance between two crests to be 1.2m. Calculate the

a. Speed of water waves and

b. Depth of water

Answer 1

Given:

$t=10\:\rm s$

$l=8\lambda$

$\lambda=1.2\:\rm m$

(a) The speed of water waves 

$$v=\frac{l}{t}=\rm\frac{8*1.2\: m}{10\: s}=0.96\: m/s$$

(b) N/A