If plate has one vertical slit {slit experiment, wave}, light diffracts around edge and makes horizontal diffraction pattern. The most-intense light goes straight through. Lesser light amounts are farther from center. If plate has two vertical slits {double-slit experiment} {Young's experiment} {Young experiment}, light diffracts through both slits and makes horizontal interference pattern, because the diffraction patterns add.
Double-slit experiments can have ring pattern with no interference or striped pattern with interference. Detectors that detect only half the particles cause half-striped and half-ring pattern.
Physical Sciences>Physics>Wave>Superposition
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Date Modified: 2022.0224