Across
- 5. amount of bend the mirror or lens has.
- 6. coming from sun or light bulb emit light waves that are vibrating in every plane.
- 7. light, beam of light that only vibrates in one direction.
- 11. light, spreads very little and is intense.
- 13. always curved inward
- 15. substance through which a wave can be transmitted.
Down
- 1. bending of wave as it passes at an angle from one medium to another
- 2. of reflection, angle that forms by the line normal to a surface and the direction in which a reflection ray moves
- 3. Occurs off a shiny or smooth surface (Mirror, calm water, etc.)
- 4. of Incidence, angle between the ray that strikes a surface and the normal to that surface.
- 8. spreads and loses intensity quickly.
- 9. point, unique point on mirror/lenses where parallel rays converge to particular point.
- 10. of Refraction, ratio of the speed of light in a vacuum to the speed in a given medium.
- 12. always curved outward.
- 14. occurs off of rough dull surfaces (clothes, bark, etc.)