The formula for calculating the refraction angle of a light ray incident on a prism is sin(r) = n1 * sin(i) / n2, where r is the refraction angle, n1 is the refractive index of the medium the light ray is coming from, i is the angle of incidence, and n2 is the refractive index of the medium the light ray is entering.
The angle of incidence is the angle between the incident light ray and the normal line (a line perpendicular to the surface of the prism). This can be measured using a protractor or calculated using trigonometry if the length of the incident ray and the distance between the prism and the light source are known.
The refraction angle is typically measured in degrees (°) or radians (rad). Make sure to check which unit is required for your specific calculation or experiment.
Yes, the refractive index of a medium can affect the refraction angle. The higher the refractive index, the more the light ray will bend when entering the medium. This is why light rays bend when passing through different mediums, such as air and water.
The angle of incidence and the angle of refraction are related by Snell's Law, which states that the ratio of the sine of the angle of incidence to the sine of the angle of refraction is equal to the ratio of the refractive indices of the two mediums. In other words, as the angle of incidence increases, the angle of refraction also increases.