E8 Light Ray Shift By Air Planparallel Plate; E9A Glass Prism Deviation Of Light Ray; E9B Glass Prism Minimal Deviation - 3B SCIENTIFIC PHYSICS U17300 Bedienungsanleitung

Air
Acrylic

E8 Light ray shift by air planparallel plate

(U17301)
In this case, a shift between the incoming and the out-
going ray can be observed. This shift has an opposite
direction than in the case of the glass plate.
Acrylic Air

E9a Glass prism deviation of light ray

(U17300/U17301)
If the prism is glass, after the light impinges the point
A, it is bent toward the normal and refracts to point B.
At this point it is bent into the air away from the nor-
mal. The sum of all refraction angles is the deviation
Acrylic
21
angle δ. It is the angle between the incidence and the
outgoing ray.
Air
Acrylic

E9b Glass prism minimal deviation

(U17300/U17301)
It can be seen that in the case of minimal deviation
δ the incidence angle α is equal to the angle of the
min
outgoing ray ß. The direction of the refraction of light
in the prism is parallel to the edge the ray does not
pass through. The refractive index of the prism obeys
the formula:
δ + ϕ
min
sin
2
n =
ϕ
sin
2
Air
Acrylic