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Amplitude is something that relates to the maximum displacement of the waves. Furthermore, in this topic, you will learn about the amplitude, amplitude formula, formula’s derivation, and solved example.
As an example, for water waves, v w is the speed of a surface wave; for sound, v w is the speed of sound; and for visible light, v w is the speed of light. The amplitude X is completely independent of the speed of propagation v w and depends only on the amount of energy in the wave.
In the previous section, we described periodic waves by their characteristics of wavelength, period, amplitude, and wave speed of the wave. Waves can also be described by the motion of the particles of the medium through which the waves move.
The amplitude of a wave is the maximum displacement of the particle of the medium from its equilibrium position. Check this page to know the formula for Amplitude with Solved Example.
Examples Using Amplitude Formula. Example 1: y = 2sin (4t) is a wave. Find its amplitude. Solution: Given: equation of wave y = 2sin (4t) Using amplitude formula, x = A sin (ωt + ϕ) On comparing it with the wave equation: A = 2. ω = 4. ϕ = 0. Therefore, the amplitude of the wave = 2 units.
A wave’s amplitude is the maximum distance (positive or negative) a wave reaches from its rest position. Wavelength is the distance between the same spot on two sections of a wave. A wave’s frequency can be measured by how many crests (or how many troughs) pass a location in a certain amount of time.
The amplitude A of the wave is the maximum displacement of the wave from the equilibrium position, which is indicated by the dotted line. In this example, the medium moves up and down, whereas the disturbance of the surface propagates parallel to the surface at a speed v.
