Understanding Wave Interference: Explaining the Effects of Wave Interaction

[boredooom]

Hi. Could anyone tell me what would happen if these two waves meet? I would also appreciate it if anyone could explain to me how they arrived at their conclusion.

http://img145.imageshack.us/img145/6854/wavest1.png

 

[berkeman]

A left-travelling wave and a right-travelling wave of the same amplitude and wavelength will form standing waves. Is this a homework problem?

 

[berkeman]

Also, I don't see a conclusion, just the waveform drawing.

 

[billiards]

for linear waves, a particle at the midpoint between those waves will oscillate once with twice the amplitude of the original waves.

 

[disregardthat]

Does a photon move in a 1 dimensional direction, or does it move like a wave covering all 'three dimensional' area as it is emitted. (like all 360 degrees on a paper, only three dimensional)