wave a, with an amplitude os 3m, meets wave b, with an amplitude of 3m. When A and B overlap, the wave produced (C) has an amplitude of 6 m. descirbe how this looks like and what kind of wave interaction it is.
2006-10-21 06:41:34 · 4 answers · asked by Kid Icarus 1 in Science & Mathematics ➔ Physics
First it is called a constructive interference reaction. It looks like the original waves, but the crests and troughs (the ups and downs) are higher and the lines are steeper going up and down, but the wave has the same wavelength, and frequency.
2006-10-21 06:46:26 · answer #1 · answered by superp975 2 · 1⤊ 0⤋
You can't say without specifying the relative frequencies of the two waves.
I'm not sure what an m is.
If the waves are the same wavelength and you get twice the amplitude, they must be in phase, so the result will look like the originals (a sine wave), but with twice the amplitude.
2006-10-21 08:26:21 · answer #2 · answered by Nomadd 7 · 0⤊ 0⤋
according to ur question it seems that the waves have interfered constructively as their amplitudes are added up.
amplitude of resultant wave after superposition is given by:
R=[a^2 + b^2 +2ab cos(theta)]^0.5
theta is their phase difference in radians
here a=3 b=3 and since R=3 theta is an even multiple of pie rad
so the waves must be in the same phase that is ,every point in
one wave must be at the same position or vibrates with the same
amplitude as the corresponding point in the other wave.
it may be sinusoidal wave.
2006-10-21 06:57:04 · answer #3 · answered by K R 2 · 0⤊ 0⤋
When two identical waves that originate from the same point. and they are in phase (so that the peaks and valleys of one are exactly aligned with those of the other), they combine to double the displacement of either wave acting alone.
The wave interaction is called "in phase" or "constructive interference"
http://micro.magnet.fsu.edu/primer/java/interference/waveinteractions/index.html
2006-10-21 06:50:05 · answer #4 · answered by Anonymous · 0⤊ 0⤋