Ch. 16 Introduction - University Physics Volume 1 | OpenStax

T.H.W →

$$ y(x,t) =Asin(kx±\omega t+\phi) $$

Wave speed depends on medium

It can be break down in to two different graph.

(y v.s. x)

Period $\lambda$

$$ v = \frac \lambda T = \lambda f $$

(y v.s. t)

Period T

$$ \omega = \frac {2\pi} T = 2\pi f $$

k → This is not the k of SPRING CONSTANT but WAVE NUMBER ($\lambda$)

Mechanical Waves don’t need a median

Electromagnetic Waves need a median