Across
- 2. When light passes from air into glass or water, the angle of incidence is ...... than the angle of refraction.
- 4. The line perpendicular to the mirror
- 7. The diagram that show what happens to the light rays during reflection.
- 10. Changed to be less clear.
Down
- 1. The angle between normal and reflection ray
- 3. Light focuses in front of the retina
- 5. The change in direction of light on passing from one medium to another because of change in speed.
- 6. The speed of light in ...... is 300 000 kilometres per second.
- 8. A light ray arriving at a mirror
- 9. The material that light passes through