this diagram is of mirage
please explain this phenomenon of mirage
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Explanation:
The mirage is one optical phenomenon that creates the illusion of water the result from the refraction of light through a non uniform medium.
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Please explain this phenomenon of mirage.
→ Mirage is an optical illusion of water observed in deserts when the inverted image of an object say a tree is observed along with the object itself on a hot day.
→ Check the attachment first.
→ On a hot summer day, temperature of air near the surface of earth is maximum. Therefore, density of the air close to the surface of the earth is very small.
→ As we go higher, temperature of the atmosphere decrease.
→ Therefore, the value of density of air at higher altitude above a few metres from the surface of the earth is large.
→ A ray of light from the top O' of a tree goes from denser to rarer medium. At a particular layer, when angle of incidence becomes greater than critical angle , then total internal reflection occurs and the totally reflected rays reach the observer along AE. This ray AE appears to come from I, the mirror image of "O'.
→ Thus, the inverted image of a tree creates the impression of reflection from a pond of water.
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