Question

A sound wave travels at 340 m/sec and has a wavelength of 2.5 meters. Calculate its frequency and period.

Answer 1

136Hz

0.0074s

Step-by-step explanation:

Given parameters:

Velocity of the wave = 340m/s

Wavelength = 2.5m

Unknown:

Frequency and period = ?

Solution:

To solve this problem, we use the wave velocity equation;

V = F ∧

V is the velocity

F is the frequency

∧ is the wavelength

Let us find the frequency

340 = F x 2.5

F = 136Hz

Period is the inverse of frequency;

Period =
`(1)/(136)` = 0.0074s