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