Refractive Index

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  • Created by: Simana
  • Created on: 29-10-15 12:10
What is Refraction?
When waves change direction as they enter a different medium
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What causes Refraction?
The change in density from one medium to the other-which changes the speed of the waves.
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What happens when waves slow down?
They bend towards the normal.
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What happens if a wave hits a boundary at 90 degree?
It will not change direction but will slow down.
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What is the Refractive Index of a medium?
The ratio of speed of light in a vacuum to speed of light in that medium.
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What is the formula of refractive index?
Refractive index (n)= sin i/sin r
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Other cards in this set

Card 2

Front

What causes Refraction?

Back

The change in density from one medium to the other-which changes the speed of the waves.

Card 3

Front

What happens when waves slow down?

Back

Preview of the front of card 3

Card 4

Front

What happens if a wave hits a boundary at 90 degree?

Back

Preview of the front of card 4

Card 5

Front

What is the Refractive Index of a medium?

Back

Preview of the front of card 5
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