explain the phenomenon of mirage formation in deserts due to total internal reflection. pls explain in simpler words pls pls in simple way
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Mirage occurs due to total internal reflection of light (TIR).
When the sun is high in the sky, the sand gets heated first and then the layers of air above it.
The rays from the trees travel from an optically denser air layer to a rarer layer and hence bend away from the normal.
This bending continues and a stage is reached where the angle of incidence becomes greater than the critical angle and total internal reflection takes place.
When the sun is high in the sky, the sand gets heated first and then the layers of air above it.
The rays from the trees travel from an optically denser air layer to a rarer layer and hence bend away from the normal.
This bending continues and a stage is reached where the angle of incidence becomes greater than the critical angle and total internal reflection takes place.
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