What is reflection?

Q: What is reflection?


A: Reflection is the change in direction of a wave at a boundary between two different media, so that the wave moves back into the medium it came from.

Q: What are some common examples of reflection?


A: Common examples of reflection include light, sound and water waves.

Q: What is specular reflection?


A: Specular reflection is a mirror-like reflection of light from a surface, in which light from a single incoming direction is reflected into a single outgoing direction.

Q: How does the law of reflection work?


A: The law of reflection states that when light reflects off an object, both angles (the angle of incidence and angle of reflectance) must be equal.

Q: What are some things people make to use reflections?


A: People make many things to use reflections including reflecting telescopes, radar, sonar, lidar and putting light reflectors on objects they want to see.

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