colour Flashcards
1
Q
what is colour
A
a certain wavelength in visible light
2
Q
what is white light
A
all the different wavelengths (colours) of light
3
Q
what do white objects do
A
reflect all of the wavelengths of visible light equally
4
Q
what do black objects do
A
absorb all wavelengths of visible light
5
Q
what do cone cells in the retina detect
A
primary colours
6
Q
what does the colour of an opaque object depend on
A
what wavelength is reflected (the others are absorbed)
7
Q
what do colour filters do
A
transmit the colour of the filter and absorb the rest
