Refractive index
The refractive index tells you the speed at which light will pass through a specific material:
- A higher refractive index means the light moves more slowly
- During refraction, it will bend towards the normal.
- A lower refractive index means the light moves more quickly
- During refraction, it will bend away from the normal.
Calculating the refractive index
If we have a material which has a refractive index of
n is the refractive index of the material - it has no unit because it’s a ratio.c is the speed of light in a vacuum - measured inms^{-1} c_s is the speed of light through the material - measured inms^{-1}
flashcards
| Question | Answer |
|---|---|
| What does a higher refractive index indicate about the speed of light and its bending during refraction? | It means light moves more slowly and bends towards the normal. |
| What does a lower refractive index indicate about the speed of light and its bending during refraction? | It means light moves more quickly and bends away from the normal. |
| What is the equation for calculating the refractive index | |
| What does | It represents the refractive index of the material, and it has no unit because it is a ratio. |
| What does | |
| What does |