Refraction of light Flashcards
1
Q
Refraction
A
The change in speed of light as it passes from one medium to another
(e.g. from air to glass).
2
Q
What happens to the speed of light as it travels from air into glass?
A
The speed of light in glass is slower than the speed of light in air.
3
Q
In the diagram below, identify the normal, the angle of incidence and the angle refraction?
A
Normal dashed line at 90° to block.
Angle of incidence is between the arrow going in and the normal (outside block).
Angle of refraction is between the arrow going through and the normal (inside block).
4
Q
What happens to a light ray as it travels from air into glass?
A
Slows down and move towards the normal.
4
Q
What happens to white light when it passes thrown a triangular prism?
A
The light refracts and produces a spectrum.
