1
Q
Refractive index formula
A
n = c / v
n = refractive index of the
c = velocity of light in vacuum
v = velocity of light in substance
2
Q
How does light wave change?
A
Based on refraction
3
Q
What is refractive index?
A
The measure of bending of a light ray from one medium to another.
4
Q
Why do the waves change direction when changing substrate?
A
The 2 substrates are different density’s.
5
Q
angle of incidence and refraction formula
A
n = c / v = sin i / sin r
6
Q
Uses of refraction
A
Magnifying glass
Lenses
Glasses
Prisms
Unit 1
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