Mirage is an example of

A mirage is an example of refraction (Option A). This optical phenomenon occurs when light travels through layers of air with varying temperatures, causing the light rays to bend. On hot days, the ground heats the air above it, creating a gradient of temperatures with cooler air above and warmer air near the surface. As light passes through these layers, it bends or refracts due to the changes in air density. When the angle of refraction is significant, light rays curve upwards and may create the illusion of water or sky on the ground. This effect is often seen on roads or in deserts, where it appears as though there is a pool of water in the distance. The mirage is not a reflection but a refracted image, demonstrating the principles of refraction and how varying air temperatures can influence the path of light.