interference

    Cards (6)

    • interference is evidence for the wave model of light
    • coherant waves have a constant phase relationship
    • destructive interference is when two waves meet that are completely out of phase (crest meets trough)
    • constructive inerference is where two waves are in consistant phase (crest meets crest) (trough meets trough)
    • maxima is produced after constructive interference (whole number of wavelengths)
    • minima is produced after destructive interference (odd number of half wavelengths)