Light Academy

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Across
  1. 1. A reflection or refraction of light or other electromagnetic radiation from an irregular surface or an erratic dispersion through a surface
  2. 3. Point on the medium that exhibits the maximum amount of positive or upward displacement from the rest position
  3. 5. Spatial period of a sinusoidal wave
  4. 8. Imaginary line perpendicular to the surface reflecting the light. It divides the angle between the incident ray and the reflected ray or the refracted ray
  5. 9. Allowing light to pass through so that objects behind can be clearly seen
  6. 10. Light that is beyond the purple end of the range of colours (electromagnetic spectrum)
  7. 11. Term used to describe how fast a wave is moving
  8. 12. Phenomena that happens when light waves move through a material without being absorbed
  9. 13. Electromagnetic radiation within a certain portion of the electromagnetic spectrum
  10. 15. Phenomena which occur when a wave encounters an obstacle or a slit
  11. 17. In physics, it's the number of crests of a wave that move past a given point in a given unit of time
  12. 18. Object that reflects light
  13. 19. Line which marks the limits of an area. Related to light it's the perpendicular to the normal and it divides two mediums
Down
  1. 1. In optics, it refers to the separation of electromagnetic radiation into constituents of different wavelength
  2. 2. Cut or opening. A wave that passes through it, if that opening's length is comparable to the wave length, experiences the phenomenon of diffraction: the trajectory of the wave gets deviated
  3. 4. An enclosed space from which matter, especially air, has been partially removed so that the matter or gas remaining in the space exerts less pressure than the atmosphere
  4. 6. Property of waves that can oscillate with more than one orientation
  5. 7. Something that happens in a regular and repeated way
  6. 14. The part of the electromagnetic spectrum with a longer wavelength than light but a shorter wavelength than radio waves; radiation with wavelength between 0.8 micrometres and 1 millimeter
  7. 16. Property of a light wave determined by the frequency of the electromagnetic radiation