We discuss mirages formed near a sun-heated wall, and consider the underlying physics. The temperature and refractive index variations in air near the wall are estimated, and a simple approximate picture of ray propagation is presented. Estimates of the thermal decay length and ray curvature are compared with experimental observations.
American Journal of Physics
Copyright 2000 American Association of Physics Teachers. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Association of Physics Teachers. The following article appeared in Am. J. Phys. 68, 1120 (2000) and may be found at http://dx.doi.org/10.1119/1.1286311.
Kosa, T.; Palffy-Muhoray, Peter (2000). Mirage Mirror on the Wall. American Journal of Physics 68(12) 1120-1122. doi: 10.1119/1.1286311. Retrieved from https://oaks.kent.edu/cpippubs/358