Question

How do you find the amplitude of a wave?

Answer 1

Answer: The person above me is absolutely correct!

Explanation: The formula for calculating amplitude of a wave is:

x = displacement of wave (meter)

A = amplitude

ω = Angular frequency (rad/s)

t = Time period

ϕ = Phase angle

Happy to help, if I did!

Answer 2

To find the amplitude, wavelength, period, and frequency of a sinusoidal wave, write down the wave function in the form y(x,t)=Asin(kx−ωt+ϕ).

The amplitude can be read straight from the equation and is equal to A.

The period of the wave can be derived from the angular frequency (T=2πω).