Question

Hey guys ☄️

Explain the formation of mirage ?​

Answer 1

Defination:-

Mirage is the optical illusion; the water appears at the distance but when we go there we don’t find any water. It occurs due to Total Internal Reflection.

Formation:-

• During hot summer days air just above road is very hot and air at higher altitudes is cold.

• It means that temperature decreases with height. As a result density of air increases with height.

• We know that refractive index of air increases with density. Thus refractive index of air increases with height.

• So cooler air has higher refractive index than the hotter air just above the road.

• This appears as the ray is reflected from the ground.

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