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By measuring these angles, we can calculate the optical density of the glass. 2. Experimental Procedure
n=sinαsinβn equals the fraction with numerator sine alpha and denominator sine beta end-fraction By measuring these angles, we can calculate the
A glass plate with parallel edges (or a prism), a piece of cardboard, pins (or a laser pointer), a ruler, a protractor, and a pencil. 1. Theoretical Background The refractive index ( Potential errors in the experiment may arise from
Below is a structured template (essay/report) you can use for this work: the ray bends toward the normal.
In this lab, I determined the refractive index of glass by measuring the angles of light propagation at the boundary of two media. The results confirm that as light enters a more optically dense medium (glass) from a less dense one (air), the ray bends toward the normal. Potential errors in the experiment may arise from the thickness of the pencil lines or slight misalignments of the pins/laser.
Mark a point on one edge where the light ray will enter. Draw a perpendicular line to the surface at this point. Draw an incident ray at an angle (e.g., 30∘30 raised to the composed with power 45∘45 raised to the composed with power ) to the perpendicular.