A mirage is a naturally occurring optical phenomenon in which light rays are bent to produce a displaced image of distant object
A mirage is a naturally occurring optical phenomenon in which light rays are bent to produce a displaced image of distant objects or the sky. Cold air is denser than warm air and, therefore, has a greater refractive index. As light passes from colder air across a sharp boundary to significantly warmer air, the light rays bend away from the direction of the temperature gradient.
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