Light Vocabulary

2. Type of telescope that uses a concave mirror to see distant objects.
4. Imaginary line that divides a mirror in half.
5. Thin center thick edge. Corrects nearsightedness.
9. The color when all three primary colors of light are combined in equal amounts.
11. Protects the eye and helps focus light rays.
12. substances that are used to color other material.
16. Surface curves inward and produces a real and virtual image.
17. Type of telescope that forms a real image using a convex lens.
18. Optical nerve begins and there are no rods or cones.
19. Reversed image that doesn't really exist.
20. color of light it reflects and absorbs the others.
21. Copy of a reflected or refracted object.
22. Thick center, thin edge. Corrects farsightedness.
23. The color when all three pigment colors are combined in equal amounts.

1. Light rays hit uneven surface causing rays to reflect at different angles.
3. Allows you to see in the dark.
6. Mirror that curves and spreads rays outward; focal point is behind the mirror.
7. It's color is due to reflecting blue light, absorbing red light and using a yellow filter.
8. only allows a certain color through: red filter red color; green filter, green color.
10. Faster in hot air, slower in cold air.
13. Ring of muscle that changes the pupil's size.
14. Light rays meet at focal point creating an upside down image.
15. Detects red blue and green.