Physics crosswords

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Across
  1. 3. Visible color with shortest wavelength
  2. 8. type of doping material used in a p-type semiconductor
  3. 10. units for magnetic flux density
  4. 13. Waves that require a medium
  5. 14. Law that describes refraction
  6. 15. who discovered electron
  7. 16. units for frequency
Down
  1. 1. phenomenon that forms colors on the surface of soap bubbles
  2. 2. process of adding impurity to a pure semiconductor
  3. 4. Neutral or no charge
  4. 5. bending of light when passes from one medium to another
  5. 6. Variable resistance is also called
  6. 7. Physics that deals with tiny objects
  7. 9. Not Discrete but ?
  8. 11. Instrument used to measure current
  9. 12. maximum displacement of wave