Question

if a wave has a wavelength of 9 meters and a period of 0.006, what is the velocity of the wave?
a) 1,500 m/s
b) 1,200 m/s
c) 1,800 m/s
d) 1,285 m/s

Explanation:

Step1: Recall wave velocity formula

Wave velocity $v = \frac{\lambda}{T}$, where $\lambda$ = wavelength, $T$ = period.

Step2: Substitute given values

$\lambda = 9\ \text{m}$, $T = 0.006\ \text{s}$
$v = \frac{9}{0.006}$

Step3: Calculate the result

$\frac{9}{0.006} = 1500\ \text{m/s}$

Answer:

A) 1,500 m/s