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3 cards from this section. Quick, good the night before a test.
What is constructive interference?
Think about the peaks of the waves.
Define destructive interference.
Consider what happens when a peak meets a trough.
What is constructive interference?
Think about what happens to the amplitude.
True or False: Destructive interference increases wave amplitude.
Consider the effect of waves canceling each other out.
A monochromatic light source is shone through a double-slit. Describe the expected interference pattern on the screen. Make a labeled sketch!
Remember how peaks overlap in this setup!
If two coherent light waves of the same frequency are traveling in opposite directions meet at a junction, describe what happens at that point.
Consider the properties of being in phase versus out of phase.
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