Waves propagate at 6.8 m/s along a stretched string.The end of the string is vibrated up and down once every 2.5 s.What is the wavelength of the waves that travel along the string?

A) 5 m
B) 17 m
C) 2.7 m
D) 1.9 m
E) 9.6 m

Question

Waves propagate at 6.8 m/s along a stretched string.The end of the string is vibrated up and down once every 2.5 s.What is the wavelength of the waves that travel along the string?
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A) 5 m
B) 17 m
C) 2.7 m
D) 1.9 m
E) 9.6 m

Quizplus · Accepted Answer

The wavelength can be calculated using the formula: wavelength = wave speed / frequency. The frequency is the reciprocal of the period, so frequency = 1 / 2.5 s = 0.4 Hz. Therefore, wavelength = 6.8 m/s / 0.4 Hz = 17 m.

Waves Propagate at 6