Question

Explain why, if we look at objects through the hot air over a fire, the objects appear to be moving (or shaking) slightly.

Answer 1

Answer:

 It is the hot air! Fire creates a sort of blanket of hot air around itself and outside that is the cold air. The former one has a tendency to lift upwards, while that of the latter one is to come down. The hot air around the object rises, and cold air fills up the emptied space. This cool air again gets warmed, rises, and then replaced by the cold one. This process continues until fire blows out

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Answer 2

Explanation:

Because at place of hot air over the fire the air molecules moving very fast due to increase in temperature at that point so if you look through it object seem to be moving.

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