- #1

songoku

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- Homework Statement
- A simple harmonic transverse wave is travelling in the medium along negative x-direction. The waveform at t=1 s is shown in Figure a. The time dependence of displacement of a point mass in the medium is shown in Figure b. This point mass may be located at...

A) x = 0 m

B) x = 1 m

C) x = 2 m

D) x = 3 m

- Relevant Equations
- Not sure

Since figure (a) shows the waveform at t = 1 s, I also look at figure (b) when t = 1 s. The value of y is zero so I try to find the location of x from figure (a) for which y = 0. There are two value of x, 0 and 2 m.

Let say x = 0 is point P and x = 2 m is point Q. The period is 4 s so at t = 1 s, the wave has travelled to left for a quarter wave so initially point P is at x = 1 m and point Q is at x = 3 m so I think the answer is either B or D but I don't know how to determine which one is correct.

Thanks