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.
. Typically, for standard glass, the result should be approximately . 4. Conclusion Mark a point on one edge where the light ray will enter
Laboratory Work No. 3: Determination of the Refractive Index of Glass Conclusion Laboratory Work No
Repeat the measurements for different angles of incidence to ensure accuracy. 3. Data Analysis for standard glass
Place the glass plate on a sheet of paper and trace its outline.
Connect the entry and exit points to visualize the refracted ray inside the glass. Use a protractor to measure the angle of incidence ( ) and the angle of refraction (
Calculate the refractive index for each trial using the formula