Across
- 4. transporting energy which has a speed of 300,000 km/s through a vacuum or 3x108 m/s.
- 6. angle of reflection is equal to angle of angle of incidence
- 7. one of the biggest source of light its a massive star
- 9. has a reflecting surface that is curved inward
- 12. other term for concave lens
- 13. is a curved transparent medium made of glass and has a thicker center/middle than at its edge
- 14. eyeglasses like in correcting nearsightedness
- 16. is a very common condition in which the light coming into the eye is not focused properly onto the retina also known as nearsightedness\
- 18. ratio of the angles of incidence and transmission is equal to the ration of the refractive
- 19. an example of convex lens and an optical instrument used for viewing very small objects, such as mineral samples or animal or plant cells, typically magnified several hundred times.
- 20. the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water
Down
- 1. the fluctuations of electric field and magnetic fields
- 2. is a refractive errorhich means that the eye does not bend or refract light properly to a single focus to see images clearly. also known as farsightedness
- 3. it reflect anything that allows us to see image
- 5. example of concave lens and also an optical instrument designed to make distant objects appear nearer
- 8. are curved pieces of glass or transparent materials that refracts light.
- 10. electromagnetic radiation/wave that can be detected by the eye
- 11. in optics, a relationship between the path taken by a ray of light in crossing the boundary or surface of separation between two contacting substances and the refractive
- 15. has a reflecting surface that is curved outward.
- 17. property of certain electromagnetic radiations in which the direction and magnitude of the vibrating electric field are related in a specified way.