Across
- 2. this wave is distant
- 4. no light can pass through it
- 6. spectrum it is the entire range
- 8. some light to pass through
- 9. theory added in small amounts to improve it
Down
- 1. or rays meet at this point
- 3. see through
- 5. producing a range of color
- 7. a line drawn perpendiclar
- 9. of incidence the angle on the left