Question

define reflection and write the cause of it in brief for 10th class​

Answer 1

An image that you see in a mirror, in water or on a shiny surface is called reflection.

Cause:

Reflection can happen for a couple reasons. Reflection off metals (like a mirror) happens because electrons in the metal happen to be able to match the frequency of the light, so it bounces off. It can also happen because of a change in refractive index. Glass and water both have different refractive indices than air, so when there's an interface between air and water or between air and glass (an interface is where two things meet), you get reflection. This is why you see reflections off glass or off water, or other materials that are normally transparent.

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