Minicíocht
Nuair a athraíonn paraiméadar go tréimhsiúil, mar a tharlaíonn i dtonn ar bith, bíonn a oiread sin ciogal in aghaidh an tsoicind.
Minicíocht a thugtar ar an rud sin.
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Aonad minicíochta is ea an heirts agus is é Hz an nod air.
Tréimhse T a thugtar ar an am a thógann aon chiogal amháin, agus más í f an mhinicíocht, tá T = 1/f.
Forleathann an tonn agus is é an fad a ghluaiseann sí i dtréimhse amháin: an tonnfhad λ. Is ionann í sin agus c T = c/f = λ, nuair is é c |luas forleata na toinne.
Mar sin dá mhéad an mhinicíocht is ea is lú an tonnfhad.
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