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# Bølger

### Spørgsmål omkring emnet bølger

Hvad siger bølgeligningen? lambda*f og labda/t
Konstruktiv interferens er når to bølger _________ hinanden forstærker
Destruktiv interferens er når to bølger _________ hinanden svækker
Hvad er en planbølge? En harmonisk bølge, hvor bølgetoppene ligger på parallelle linjer i afstanden en bølgelængde fra hinanden
Hvordan forkortes gitterkonstanten? d
Hvordan forkortes brydningsindeks? n
Hvornår eksisterer der en grænsevinkel? når n1 > n2
Hvis vi går fra luft til vand kan der forekomme totalreflektion? n_luft =1,00 n_vand = 1,33 nej eftersom n1 er mindre end n2
Hvordan finder du L på en stående bølge op en streng og et åbent resonansrør? L=n*(lambda/s)
Hvordan finder du L i et halvåbent resonansrør? L=n*(lamda/4)
Created by: 639544509532638

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