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When two waves interfere, the displacement where two troughs meet is negative.
wavelength
A trough wave is the lowest part between two crest waves.
Negative
During constructive interference, the amplitude of a wave increases. This occurs when two waves of the same frequency and similar amplitudes align their peaks and troughs. As a result, their amplitudes add up, resulting in a higher overall amplitude.
When two waves interfere, the displacement where two troughs meet is negative.
A trough wave is the lowest part between two crest waves.
wavelength
A trough wave is the lowest part between two crest waves.
Negative
During constructive interference, the amplitude of a wave increases. This occurs when two waves of the same frequency and similar amplitudes align their peaks and troughs. As a result, their amplitudes add up, resulting in a higher overall amplitude.
Light waves of a single wavelength is known as being coherent. This allows constructive interference which occurs when two or more waves are in phase i.e. their crests and troughs are aligned.
Light waves of a single wavelength is known as being coherent. This allows constructive interference which occurs when two or more waves are in phase i.e. their crests and troughs are aligned.
cresent
Constructive
it doesnt matter whether the waves meet at the surface or underwater but when this happens, the waves superpose each other that is cancel out their crests and troughs resulting in a destructive wave with an amplitude or wavelength of zero which is diagramly a straight line (no wave). so if this happens underwater, nothing shows at the surface. send more of your questions in physics to enekaith@yahoo.com
Ummmmm, NO. Ignore that. This describes an Echo. Assuming a perfectly smooth surface, the reflected wave travels away from the reflector in accordance with the usual angle of incidence = angle of reflection, diminishing with the square of the distance. Not all the energy is reflected fully. Some is scattered or absorbed by the reflecting surface. If the sound is reflected back and forth in a chaotic overlap the result is reverberation, as in a cathedral or in the ocean. In the sea reverberation gives whale calls that plangent "singing" quality, from what are really only squawks and grunts.