This document discusses the basics of mirrors and reflection. It explains that a simple mirror is made of a plane glass with a silver coating on the back protected by a layer of red paint. This allows the glass to provide a smooth reflective surface while preventing light from passing through. The key points of reflection are also outlined, including how the incident ray strikes the mirror at the point of incidence, and the reflected ray bounces off at the same angle following the law of reflection.

1. Reflection

2. Reflection of light from smooth & highly polished surfaces

3. What is a Mirror?
Simple mirror is actually a
plane glass which is silver
plated
Can we make a Mirror?
Plane glass provides
the smooth surface
Silver coating makes
it shiny

4. How to prevent light going through the mirror?
Behind the silver coating there is a red paint
Red paint also protects the silver coating from
getting scratched
Red paint prevent the light to pass through the
plane glass

5. Smooth surface The ray of light falling
on the mirror is the
Incident Light

6. Point of incidence
The point at which
the incident ray
strikes the reflecting
surface
The ray of light bouncing
off from the mirror is the
reflected ray
The line drawn perpendicular to the mirror at
the point of incidence is called Normal

8. The ray of light falling on the smooth and
highly polished surfaces like mirror is called
incident ray
The point at which the incident ray strikes
the reflecting surface is called point of
incidence
The line drawn perpendicular to the
mirror at the point of incidence is called
normal
The ray of light bouncing off from the
mirror is the reflected ray

9. Angle of incidence
&
Angle of reflection