Refractive index of a glass prism

Aim: To determine the refractive index of a glass prism

Apparatus and Materials:
1. 60-60-60 glass prism X 1
2. Optical pins X 4
3. Drawing board X 1
4. Sheet of paper X 1
5. Protractor X 1
6. Drawing pins X 4
7. Ruler X 1

Theory:
When D is at minimum, where n is the refractive index of the prism,

Procedure:
1. A sheet of paper was fixed on a drawing board by using drawing pins.
2. A glass prism was placed in the middle of the paper and the outline of the prism was drawn on the paper.
3. Two opt...