Word: wavefront
(lookup in dictionary)
(lookup stats)
Dates: during 1950-1959
Sort By: most recent first
(reverse)
...Light moves slower in a denser medium. So when a "wavefront" of light passes at an angle from dense cold air into less dense warm air, the part that reaches the warm air first races ahead of the remainder. This "refraction" has the effect of bending the wave-front toward the cold...
| 1 |