Interference Flashcards
1
Q
How to find geometric path length (L)
A
Distance measured through substance
2
Q
Optical path length
A
Multiply geo path length by refractive index of substance
3
Q
Find optical path difference (opd)
A
Opd=n(substance)L-n(air)L
Opd=nxgpd
4
Q
Div of Amp
A
When a single wave is split in two by reflection and refraction
5
Q
When light is reflected from a higher n
A
Phase change of 180deg occurs
6
Q
Thin wedge interference
A
Δx=λl/2d
7
Q
What is Δx
A
Distance between adjacent maxima or minima
8
Q
Youngs double slit
A
Δx=λD/d
9
Q
d in Δx=λl/2d
A
width of the open end of the wedge
10
Q
d in Δx=λD/d
A
seperation between slits
11
Q
Div of wavefront
A
Occurs between two coherent waves originating from the same source (Youngs double slit)
