Primarygun Posted April 3, 2005 Posted April 3, 2005 In the figure, describe the motion of particles X and Y at the instant. What will be the shape of the string after 1/4 cycle? I don't know which direction that the crests are travelling as there are two sources.
swansont Posted April 3, 2005 Posted April 3, 2005 The wall with point P is fixed, so it should end up as a standing wave.
Primarygun Posted April 4, 2005 Author Posted April 4, 2005 I haven't learnt standing wave yet. Can you tell me what it is? a straight line resulted?
swansont Posted April 4, 2005 Posted April 4, 2005 A standing wave has fixed nodes, and only certain wavelengths are allowed - a half-integral number of wavelengths have to fit. That's because all other wavelength waves will destructively interfere.
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