Question

What is the period of a wave if the wavelength is 100 m and the speed is 200 m/s?

O 0.5 s
o 25
100 s
200.000 s

Answer 1

Answer: 0.5 s

Explanation: speed = wavelength · frequency and period T = 1/ frequency.

Frequency = speed / wavelength = 200 m/s : 100 m = 2 s^-1 and T = 0.5 s