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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.
