Interference (P5)
- Created by: caits
- Created on: 13-04-14 17:02
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Interference happens when two waves overlap.
Constructive Interference:
Reinforcement of waves - when they arrive in phase they reinforce each other to give a wave of greater amplitude.
Destructive Interference:
Cancelation of waves - when they arrive out of phase they cancel out
Sources of light need to be coherent. This means they emit light of the same frequency/colour (monochromatic) same amlitude, in phase.
Path Difference:
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