physics - light Flashcards
1
Q
what happens to light when it passes through translucent materials?
A
let light through but randomly scatters it
2
Q
what happens when light travels through a transparent surface?
A
material transmits all light
3
Q
what happens when light hits an opaque surface?
A
material absorbs or reflects light, does not let it through
4
Q
the angle of incidence ray is opposite…..
A
the angle of refraction
5
Q
what is refraction?
A
when lenses bend to let light pass through them
6
Q
what is dispersion?
A
the breaking up of white light
7
Q
what are the primary colours in science?
A
red, green, and blue
8
Q
why does an apple look red?
A
because it absorbs every other colour and reflects red light
