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Waves are disturbances that propagate through space and time. Classically, they travelled through a medium, disturbing the particles but not changing their mean position. Electromagnetic waves/particle-waves need no medium; they are disturbances in their respective fields.

1 vote
1 answer
230 views

Why does the angle of waves change in refraction instead of just altering the relative posit...

So, first of I would like to apologize if my question is at all stupid, I am not at all good at physics, but I do quite enjoy studying and learning about it. So I know about refraction, I'm aware of …
N.D.H.'s user avatar
  • 101
5 votes
3 answers
1k views

Why does a wave not interfere with its secondary wavelets?

Shouldn't waves looks like a circle of interfering circles? …
N.D.H.'s user avatar
  • 101