Define mirror and types of mirror . What is light? What are lenses?
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Mirror: Mirror is a smooth polished surface which reflects light fell on it in undiffused manner.
Types of mirror:
1. Plane mirror
2. Spherical mirror
a.) Concave mirror
b.) Convex mirror
3. Paraboloid mirror etc
Light: Light is an electromagnetic radiation whose wavelength ranges between 400 to 700nm and behaves as both particle and wave(dual nature).
Lens: A lens is a transparent material bounded by two refraction surfaces of which at least one is curved.
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