Waves & Polarisation Crossword

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Across
  1. 2. Unit for frequency (5)
  2. 3. When 2 (or more) waves meet the total displacement at any one point is sum of their individual displacements at that point (13)
  3. 6. >700nm (8)
  4. 7. 0 or 360 degrees (2,5)
  5. 10. Unit for Time Period (6)
  6. 11. <400nm (11)
  7. 14. Distance between any point and the nearest point on a wave which is in phase with it (10)
  8. 17. Type of wave where the amplitude of every point on the wave is the same (providing no energy loss)(11)
  9. 18. A point of zero amplitude on a standing wave(4)
  10. 19. In terms of wavelength, the distance between two adjacent nodes (4)
  11. 21. 180 degrees (9)
  12. 22. a polarising filter will block transmission of light when it is rotated at ___ degrees to the plane of polarisation of the wave (6)
  13. 24. Time taken for one complete oscillation (4,6)
  14. 25. 3x108 m/s (5,2,5)
  15. 27. Light becomes polarised when it is ___________ off a surface(9)
  16. 28. Maximum displacement of a wave(9)
Down
  1. 1. Waves that have oscillations at right angles to the direction that the wave travels (10)
  2. 4. 700nm (3)
  3. 5. Waves that have oscillations in the same direction as the wave travels (12)
  4. 8. Phase difference necessary for destructive superposition (3)
  5. 9. Progressive waves transfer energy from A to B but they don’t transfer _________ (6)
  6. 10. Type of wave where the amplitude varies between adjacent nodes and antinodes (8)
  7. 12. Number of complete oscillations in 1 second (9)
  8. 13. Name for standing wave pattern with a single antinode (11)
  9. 15. When 2 (or more) waves have the same frequency and a constant phase difference (8)
  10. 16. The result of constructive superposition within a standing wave (8)
  11. 20. Unit for wavelength (5)
  12. 23. 400nm (6)
  13. 26. Transverse wave that oscillates in only one plane (9)