Light Waves Flashcards
0
Q
Uses of total internal reflection
A
Reflectors - light travels back to source
Optical fibres - central core is dense while outside is less dense. Acts a a light pipe for doctors to see inside bodies with. Can be used for telecommunication
1
Q
Properties of a image on a mirror
A
Image is same distance from object
The image is the same size
The image is virtual
The image is laterally inverted
2
Q
Dispersion
A
When a light ray is shined through a glass prism and disperse into a spectrum
3
Q
Total internal reflection
A
When light is shined into a optically dense medium, the majority of the light refracts but a small bit reflects
When the angle of incidence is greater than the critical angle, all the light is reflected
