The majority of the chapter on light you need to know for the junior cert.
|
Criado por white.emer
quase 12 anos atrás
|
|
Fechar
|
|
Criado por white.emer
quase 12 anos atrás
|
|
Physics: Light
Light travels in straight lines. TO show this, set up an experiment like so.
Dispersion: the breaking up of white light into its spectrum colours. (spré)
If you place a pencil in a glass of water, it looks like if it is bent where it enters the water. This is because of REFRACTION.
Convex lens ; When the light falls on a convex lens it refracts and comes together at a point called the focal point.
