Across
- 5. A seer
- 6. see through
- 7. Light refractor
- 11. Opposite of convex
- 12. Holy book of Islam
- 13. bending outwards
Down
- 1. Islamic leader
- 2. range of color
- 3. Allowing light to pass through
- 4. Muslim head covering
- 8. bouncing of light
- 9. impenetrable by light
- 10. when light changes angle