Physics

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Across
  1. 1. Failure of lens to focus all colors to the same focal point
  2. 4. superposition of waves from 2 coherent sources
  3. 5. Aberration in which the outer parts of a lens do not bring light rays into the same focus as the central part
  4. 6. principle principle which tells that every point on a wavefront is itself the source of spherical wavelets
Down
  1. 2. The sources are … when they emit waves that have a constant phase difference
  2. 3. law n1sinө1=n2sinө2
  3. 5. Waves that are produced by superposition of 2 progressive waves of equal amplitude and frequency,travelling with the same speed in opposite direction