Sound and Light!

Sound and Light!

1. Convex & Concave mirrors

   • COnvex & concave lenses

2. The law of reflection

   • Incidence ray = reflective ray
     • I=R

3. Sound and light energy

   • Sound
   • Light
     • Always travels in a straight line
     • Has properties of particles and of a wave
     • Electromagnetic radiation

4. Light passing through matterials

5. Eye anatomy

   • Cornea the protective layer
   • Retina
   • focal point, where the light foceses
   • Irus
   • Pupil

6. Long & short sightedness

   • Long sighted = Hyperopia
     • See things that are far away
       • To correct wear double convex lenses
   • Short sighted = Myopia
     • Myopia = See things that are up close
       • To correct wear double concave lenses

7. Light dispersal & the spectrum

8. Seeing colours

   • RGB
   • Things are the colour the reflect most of
   • Red is lowest wave frequency
   • Violet is the highest wave frequency
   • Black is actually the absence of colour

9. Sound transfer

10. The ear