Visible Light 2

2. Light is able to travel through.
4. Imaginary flat surface that only has length and width, but no depth.
5. Outward curve.
7. Light ray that is reflected by the reflective surface.
8. Hole in the centre of the iris that controls the amount of light that enters the eye.
9. Angle between the normal and the incident ray.
10. Nerve part of the eye that transmits information from the retina to the brain.
11. Light ray that travels to the reflective surface.
14. Protective front covering of the eye.

1. Straight line that does not cross a curve, but only touches the curve at a single point.
2. Some light is able to travel through this material.
3. Angle between the normal and the reflected ray.
6. Inward curve.
9. Light travels to the material and is unable to travel any further.
10. Does not allow light to travel through.
12. Imaginary line on a reflective surface that is perpendicular to the surface.
13. Sensory layer at the back of the eye.