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How does mirror works?

Light is a form of energy and when it hits a surface such as a mirror, is reflected from the surface. This is similar to a bouncing ball into a wall. The reflected image is composed of photons, which are particles of light. When these photons originally hit the mirror it creates vibration that causes electrons within the atoms, which, in turn, produces a photon of light which is identical. When light hits a flat glass, the light is reflected at the same angle, but reversed left to right. An example of this is to hold a piece of paper in front of the mirror and write on paper without looking at this, but at her reflection in the mirror you’ll notice that when you look at the role the words are written backwards.

Ancient mirrors
Ancient mirrors

How mirrors are made?

The mirrors are typically manufactured by applying a thin layer of aluminum or silver to a smooth piece of glass of high quality. A polished metal plate may also be used, provided the surface is exceptionally smooth. There are three basic types of mirrors;

  • Flat mirrors,
  • Convex and,
  • Concave

A plane mirror is a flat surface. The Wall mirrors in bathrooms are typical examples of plane mirrors. The mirrors of a car are convex, while solar ovens use concave mirrors to concentrate light. The curved mirrors make the picture appear reduced or increased in size.

NOTE: Around the 1st century, Romans were the first to invent a “glass mirror”.

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