6.6.2.6 Visible Light Flashcards
1
Q
What does each colour within the visible light spectrum have its own of?
A
- narrow band of wavelength
- frequency
2
Q
What is specular reflection?
A
- reflection from a smooth surface in a single direction
3
Q
What is diffuse reflection?
A
- reflection from a rough surface
- causes scattering
4
Q
How do colour filters work?
A
- absorb certain wavelengths (and colour)
- transmitting other wavelengths (and colour)
5
Q
What is the colour of an opaque object determined by?
A
- which wavelengths of light are more strongly reflected
6
Q
What happens to wavelengths that are not reflected?
A
- they are absorbed
7
Q
How does an object appear white?
A
- if all wavelengths are reflected equally
8
Q
How does an object appear black?
A
- if all wavelengths are absorbed
9
Q
What are objects that transmit light?
A
- transparent
- translucent
