Across
- 1. refracting surfaces at an acute angle.
- 7. passing obliquely through one medium.
- 8. lines of light.
- 10. A imaginary line.
- 11. an outward-facing lense
- 13. stimulates sight and makes things visible.
- 14. giving back or showing an image.
Down
- 2. shows a virtual image.
- 3. point at which rays or waves meet.
- 4. an inward-facing lense.
- 5. space between two objects
- 6. concentrating or dispersing light rays.
- 9. A concentration on something in particular.
- 12. a piece of matter.
- 15. Refection of an object.