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Why does frequency remain the same when waves travel from one medium to another? [duplicate]
I was reading about reflection and refraction on BBC Bitesize and I can't understand why frequency is a constant in the wave speed equation. I can't visualise the idea of it. I know that wave speed ...
3
votes
1
answer
6k
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Do water waves moving from deep water to shallow water always have higher amplitude?
I've seen many images like the following one that the height (amplitude) increases as the water becomes shallower.
However, I also found some images showing that the amplitude remains unchanged.
So ...
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