The light academy

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Across
  1. 2. Devices constructed to bend light.
  2. 6. A material substance (solid, liquid, gas, or plasma) that can propagate energy waves.
  3. 9. Physical process where a radiation deviates from a straight trajectory because of the collision with an other particle
  4. 10. The bending of a light ray when it passes from a medium to another one
  5. 11. The spatial period of a sinusoidal wave.
  6. 13. Allowing light to pass through so that objects behind can be clearly seen.
  7. 14. A phenomenon which occurs when a ray of light strikes a surface. The energy from the light is transferred to the surface material
  8. 15. A phenomenon in which two waves superpose to form a resultant wave of greater or lower amplitude.
  9. 17. A phenomenon happening when light waves move through a material without being absorbed.
  10. 19. Physical quatity referring to how fast something is moving.
Down
  1. 1. A surface associated with a propagating wave and passing through all points in the wave that have the same phase.
  2. 3. The entire range of wavelengths or frequencies of electromagnetic radiation
  3. 4. Electromagnetic radiation within a certain portion of the electromagnetic spectrum
  4. 5. The point on the medium that exhibits the maximum amount of positive or upward displacement from the rest position.
  5. 7. The separation of electromagnetic radiation into constituents of different wavelength.
  6. 8. It is something that happens in a regular and repeated way
  7. 12. Property of waves defined as the distance between the peaks of two waves.
  8. 16. The number of crests of a wave that move past a given point in a given unit of time.
  9. 17. The wave's point that displays the maximum amount of negative displacement from the rest point
  10. 18. An imaginary line perpendicular to the surface reflecting the light.