Calcite, the most common form of natural calcium carbonate (CaCO3), a widely distributed mineral known for the beautiful development and great variety of its crystals.
A wavefront is a surface over which an optical wave has a constant phase. For example, a wavefront could be the surface over which the wave has a maximum (the crest of a water wave, for example) or a minimum (the trough of the same wave) value. The shape of a wavefront is usually determined by the geometry of the source.
Any continuous portion of a 2-D or 3-D wave in which the vibrations are all the same way at the same time is called a __________ _________. Definition. wave front. Term. A floating image that appears in the distance and is due to the refraction of light in Earthâs atmosphere is called a __________.