Double-slit experiment

Why does light sometimes behave like waves and other times like particles?

Double-slit experiment

Why does light sometimes behave like waves and other times like particles?

Imagine you're at a concert, and you see a laser light show. The light beams sometimes seem to spread out and create patterns, while at other times, they just zip straight through without changing direction.

The double-slit experiment shows that light and electrons can act like waves, creating patterns, or like particles, going straight. This is called wave-particle duality.

Example

When the laser light hits the slits, it creates a pattern on the screen that looks like waves interfering with each other, not just straight lines.

Remember this

Light and electrons can behave like both waves and particles, depending on how you look at them.

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