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- A trough is the lowest point of a wave, representing a position where the wave's displacement is at its minimum.
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What is trough in physics?
What if an incident wave was a trough?
What is the difference between crest and trough?
When the motion of a traveling wave is discussed, it is customary to refer to a point of large maximum displacement as a crest and a point of large negative displacement as a trough. These represent points of the disturbance that travel from one location to another through the medium.
Definition. The trough is the lowest point of a wave, where the displacement of the medium is at its minimum.
In Figure \(\PageIndex{2}\), the waves causes a seagull to move up and down in simple harmonic motion as the wave crests and troughs (peaks and valleys) pass under the bird. The crest is the highest point of the wave, and the trough is the lowest part of the wave.
The figure shows the crest of an incident wave being reflected in phase with respect to the incident wave as a crest. If the incident wave were a trough, the reflected wave would also be a trough. The amplitude of the reflected wave would be equal to the amplitude of the incident wave.
Sep 28, 2023 · A trough with triangular ends, as described in Activity \(\PageIndex{3}\), part (c). Consider a rectangular dam that is 100 feet wide and 50 feet tall, and suppose that water presses against the dam all the way to the top.
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