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