A wave has a period 2.00 s, an amplitude 20.0 cm, and a wavelength 3.00 m. What is the speed of the wave?
A)10.0 cm/s
B)1.50 m/s
C)340 m/s
D)0.100 cm/s
E)0.667 m/s

Question

Quizplus · Accepted Answer

The speed of a wave is given by the formula v = f * λ, where v is the speed, f is the frequency, and λ is the wavelength. The frequency is the inverse of the period, so f = 1/T = 1/2.00 s = 0.500 Hz. Therefore, the speed of the wave is v = f * λ = 0.500 Hz * 3.00 m = 1.50 m/s.

A Wave Has a Period 2