Imagine you're in a room with a wall. Light comes from the outside, bounces off things like trees or people, and goes into your eyes. But when light hits a wall, it usually bounces back, not passes through, so all you see is the wall itself. That’s why you can’t look through walls like they’re made of glass.
Examples
- You see your reflection in the mirror because it reflects light back to you.
- Light from a lamp passes through a clear glass window but not through a brick wall.
- Your friend can't see you if you're behind a thick wall.
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See also
- What is refraction?
- What are multiple images?
- How Does Reflection vs Refraction Work?
- How Can a Single Light Bulb Make You See the Whole Room?
- What is corona?