Zusammenfassung der Ressource
Lenses
- Define
- Converging Lens
- Diverging Lens
- Optic Centre
- Axis
- Focus
- Focal Length
- Real/Virtual Image
- Magnification
- Power of a lens
- Draw
- A ray diagram to locate the
image formed in a convex or
concave lens, no what what the
position of the object
- Experiments
- To measure the
focal length of a
converging lens
- Describe
- Optical structure of the eye
- List
- Practical uses of lens
- Formulae
- 1/u +1/v = 1/f
- m = v/u
- P = 1/f
- P = P1 +P2
- 1/f = 1/f1 +1/f2
- Answer these questions
- What is short sight?
- What type of lens
can be used to
correct short sight?
- What is long sight?
- What type of
lens can be used
to correct it?