The amplitude of a wave changes due to factors such as the energy of the wave, the medium through which it travels, and any obstacles or interference it encounters.
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An increase in intensity of a wave causes the amplitude to increase as well. This is because intensity is directly proportional to the square of the amplitude of the wave. So, as intensity increases, the amplitude of the wave also increases.
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The amplitude of a wave can change due to factors like interference, damping, or changes in energy input. Interference can result in constructive or destructive interference patterns that affect amplitude. Damping occurs when energy is gradually lost from the system, causing the amplitude to decrease over time. An increase in energy input can result in a higher amplitude wave.
Wave intensity is directly proportional to the square of the wave amplitude. This means that as the wave amplitude increases, the wave intensity increases by a larger factor. In other words, a small change in wave amplitude can result in a significant change in wave intensity.
The amplitude of an electromagnetic wave does not change with polarization. Polarization refers to the orientation of the electric field component of the wave, while amplitude refers to the strength or magnitude of the wave. Changing the polarization of a wave does not alter its amplitude.