Question

Q7: WHY DO DISTANT OBJECTS APPEAR TO FLICKER DURING A VERY HOT

DAY?​

Answer 1

Answer:

Random wavering or flickering of objects when seen through a turbulent stream of hot air rising above the fire is due to atmospheric refraction i.e., refraction of light by the earth's atmosphere. Hotter air is less denser than the cooler air (denser) above it.

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Answer 2

Answer:

The air just above the fire becomes hotter than air further up. Hotter air is less denser than the cooler air (denser) above it. ... Consequently, the objects seen through such air show a wavering effect.

Explanation:

Hope this helps