Population density: 174 people per square mile (high). Mar. 2016 cost of living index in Florence County: 83.3 (less than average, U.S. average is 100) We are giving away a $200 prize - enter simply by sending us your own pictures of this county! Click here to upload your Florence County photos (outside city limits)
The definition of coherence is something logical or consistent and something that makes sense as a whole. An example of coherence is an argument that has no inconsistencies. coherence. coherence. The quality or state of cohering, especially a logical, orderly, and aesthetically consistent relationship of parts.
Temporal coherence is a measure of the correlation between the phases of a light wave at different points along the direction of propagation. Temporal coherence tells us how monochromatic a source is. Assume our source emits waves with wavelength Î» Î´Î».