Question

Explain how a mirage occurs

Answer 1

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# Normally, light waves from the sun travel straight through the atmosphere to your eye.


# But, light travels at different speeds through hot air and cold air.


# Mirages happen when the ground is very hot and the air is cool.


# The hot ground warms a layer of air just above the ground.


# When the light moves through the cold air and into the layer of hot air it is refracted(bent).


# A layer of very warm air near the ground refracts the light from the sky nearly into a U-shaped bend.


# Our brain thinks the light has travelled in a straight line.


# Our brain doesn't see the image as bent light from the sky.


# Instead, our brain thinks the light must have come from something on the ground.

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