Waves propagate at 4.0 m/s along a stretched string.The end of the string is vibrated up and down once every 3.0 s.What is the wavelength of the waves that travel along the string?
A) 3.0 m
B) 12 m
C) 6.0 m
D) 2.7 m

Question

Quizplus · Accepted Answer

The frequency of the wave is 1/3 Hz (since the string is vibrated once every 3 seconds). Using the wave speed formula, v = fλ, where v is the speed (4.0 m/s), f is the frequency (1/3 Hz), and λ is the wavelength, we find λ = v/f = 4.0 m/s / (1/3 Hz) = 12 m.

Waves Propagate at 4