Physics-Light

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Across
  1. 3. Huygens proposed that each wavefront acts as a source of new ___
  2. 4. The ___ theory combined the wave and particle theories
  3. 7. This theory was proposed by Isaac Newton in 1704
  4. 10. Light ____ diffract if it passes through an extremely small gap
Down
  1. 1. Diffraction is the ___ of a wave
  2. 2. each wave pulse of light is a particle of energy known as a ___
  3. 5. Huygens suggested light was a longitudinal wave capable of propagating through a material called ___
  4. 6. ___'s experiment in 1850 showed light travels faster in air than in water
  5. 8. Young showed that light from two very narrow ___ can produce a pattern of bright and dark fringes
  6. 9. Light travels faster in ___ than in water