Question

What is the period of a soundwave whose wavelength is 20.0 m? Use values from the book and show ALL of your work.

Answer 1

Answer;

Period = 1/17 seconds

Explanation;

• Wavelength is related to period by the expression:

speed = wavelength / period

• If we are given the speed, then we can easily calculate the period at the wavelength of 20 m.

Given the speed of sound wave as 340 m/s

Period = Wavelength/ speed

= 20 m/340 m/s

= 1/17 seconds