Question

Figure 1. Problem 5. A sinusoidal wave is traveling along a rope. The oscillator that generates the wave completes N vibrations in an amount of time equal to Ar. A given crest of the wave travels a dis- tance d in an amount of time equal to AT where AT ± At. Write in terms of the given parameters: a) The period of the wave? (4/66) b) The frequency of the wave? (3/69) Solution: c) The speed of the wave? (3/72) d) The wavelength of the wave? (3/75) Item b. Item a Item d. Item c. 5

Answer 1

a) For N vibrations to be completed, ∆t time is required

∴ For 1 vibration to be completed, time is required

Time period =

b) In ∆T time, a crest travels d distance

distance Velocity = "S d time

c)

Frequency = Time period

d) For a wave,

v=nλ

v = velocity

n = frequency

λ = wavelength

dat :λ = ΝΔΤ