Reflection BasicsWhen a light ray hits an object and bounces off, it is called reflection. When you think of reflection, think about mirrors. They reflect all of the light. That is the reason you can see yourself. Even the ocean reflects light, just not all of it. If you are above the ocean, you can't see the reflection that well, but when you are at an angle, look closely; you can see a reflection of the sky. So the ocean only has partial reflectivity.
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Reflecting on Webb’s Mirrors (NASA/Webb Telescope Video)
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