Laboratornaia Rabota 3 Po Fizike 11 Klass Tikhomirova Iavorskii May 2026

To measure the absolute refractive index of a glass plate using Snell's law.

Laboratory Work No. 3: Determination of the Refractive Index of Glass

) of a medium shows how many times the speed of light in a vacuum ( ) is greater than its speed in the medium ( To measure the absolute refractive index of a

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.

You can find digital versions of the lab manual and ready-made answers on platforms like Gitem or Infourok . Draw a perpendicular line to the surface at this point

By measuring these angles, we can calculate the optical density of the glass. 2. Experimental Procedure

Calculate the refractive index for each trial using the formula By measuring these angles, we can calculate the

The subject of laboratory work No. 3 in the 11th-grade physics curriculum by S.A. Tikhomirova and B.M. Yavorsky is .