Fourth year of secondary education
Optics
C.Palacios
J.L. San Emeterio
Optics
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   2.2.3 Concave mirrors: formation of images

¿What happens to rays of light when they hit a mirror?

They are reflected according to the laws of reflection.


Let's see what happens to three particular rays separately and then all together.
a ray on the optic axis

     

 

a ray parallel to
the optic axis
  

two rays parallel to the optic axis, simultaneously

a ray passing through the focal point
   

 

 

                                                                                                                        

Light as a wave
What type of wave is light?
Colour and luminous intensity
Reflection
What is reflection?
Concave mirrors
Convex mirrors
Refraction
What is refraction?
Refraction depending on colour
Converging lenses
Diverging lenses
An optical instrument: the telescope
How does it work?
What type should I buy?
Light as a particle
The photoelectric cell
What can we deduce from the way it works?
Evaluation