1. Life is like a mirror, never gives back more than we put into it.
mirrors
Life is like a mirror, never gives back more than we put into it.

2. Ray diagrams

3. A ray of light is an extremely narrow beam of light.

4. All visible objects emit or reflect light rays in all directions.

5. Our eyes detect light rays.

6. We see images when light rays converge in our eyes.

7. Reflection
Reflection is when light changes direction by bouncing off a surface.
When light is reflected off a mirror, it hits the mirror at the same angle (the incidence angle, θi) as it reflects off the mirror (the reflection angle, θr).
The normal is an imaginary line which lies at right angles to the mirror where the ray hits it θr θi
Mirror
normal
incident ray
reflected ray

8. Mirrors are women’s best friend.
Also the perfect chess-player for a lonely man 

9. What is a mirror?
A mirror is an object that reflects light in such a way that, for incident light in some range of wavelengths, the reflected light preserves many or most of the detailed physical characteristics of the original light. This is different from other light-reflecting objects that do not preserve much of the original wave signal other than color and diffuse reflected light.

10. History of mirrors
The silvered-glassed mirrors, as we know them today, originated in Germany about 200 years ago.  However, their predecessors can be traced back thousands of years ago when polished metal, stone or volcanic glass was used as a similar reflective surface. Who Invented the Mirror? According to a 2006 review by vision scientist Dr. Jay Enoch in the journal Optometry and Vision Science, people in Anatolia — modern-day Turkey — manufactured the first mirrors out of ground and polished obsidian (volcanic glass) about 8,000 years ago. Mirrors made of polished copper later popped up in Mesopotamia (now Iraq) and Egypt from 4000 to 3000 B.C. About 1,000 years later, people in Central and South America began making mirrors out of polished stone, while Chinese and Indian mirror makers crafted them out of bronze.

11. Mirror types
Plane mirror: the most common type , which has a flat screen surface.
Curved mirror: which are also used, to produce magnified or diminished images or focus light or simply distort the reflected image, and indicates two types: a- Concave mirror b- Convex mirror

12. Image formation in plane mirror.

13. Spherical Mirrors (concave & convex)

14. Image formation of concave mirrors.

15. Image formation for convex mirror.

16. What happened here?
Why each piece of the mirror behaves differently?

17. When a mirror breaks, why do pieces behave as an individual mirrors?
The point is simply that the pieces of a broken mirror do not all face in exactly the same direction.  In other words, the surface of the mirror is no longer perfectly flat.  By the geometrical law for reflection, this means that you will see something different on each flat piece, because the light being reflected back to you comes from different directions, depending on how each piece of the broken mirror is angled.

18. Mirrors of life

19. Mirrors of life

20. One way mirror
A one-way mirror, also called two-way mirror, is a mirror that is partially reflective and partially transparent. When one side of the mirror is brightly lit and the other is dark, it allows viewing from the darkened side but not the other side.

21. So would you use this toilet?

22. Helpful links
mirrors/
Lenses/Optics-Bench/Optics-Bench-Refraction-Interactive

23. Best wishes  Amal Abu Abbas