Light Flashcards
What is the speed of light?
300,000,000 metres per second
Light is a form of what?
Electro-magnetic radiation
What is the normal?
The line perpendicular to the mirror
Angle of Incidence = ?
Angle of Reflection
What is the process when light is split up into the colours of the rainbow?
Dispersion
Which colour is most bent (A.K.A refracted)?
Purple
Which is the least bent?
Red
What are the colours in order?
Red Orange Yellow Green Blue Indigo Violet Roy G Biv
As wavelength increases, what happens the frequency?
It decreases
As you go down the colour chart (red - violet), what happens to the energy?
It increases
How do we see, say orange?
The object absorbs all the colours except orange
A red filter is capable of showing?
Red light
What is blue filter capable of showing?
Blue light
What is green filter capable of showing?
Green light
What will a red filter absorb?
Blue and green light (it’s reflecting red)
A blue filter will absorb?
Red and green light (it’s reflecting blue)
A yellow filter will absorb?
Blue light (it reflects red and green light which gives yellow)
A magenta filter will absorb?
Green light (it reflects red and blue light which gives magenta)
