GradeGen

The angle between a ray travelling into a new material and the normal.

The angle between a refracted ray and the normal to the boundary it has entered.

Use the ray inside the block to measure the angle of refraction; the emerging ray is a different ray.

The angle between a ray travelling into a new material and the normal.

The angle between a refracted ray and the normal to the boundary it has entered.

Use the ray inside the block to measure the angle of refraction; the emerging ray is a different ray.

Angle of refraction