Question

1 point as 1. Colder layers of air present in the atmosphere considered medium. a) Optically denser medium ОО O b) Optically rarer medium O c) Opaque medium O d) Crystalline medium​

Answer 1

Answer:

A) Optically Denser Medium

Explanation:

The cold air layer of the atmosphere acts as a optically denser medium than hot air because the molecules are closely packed together.

Answer 2

Colder layers of air present in the atmosphere are considered an optically denser medium. (Option a)

• An optically denser medium is a medium in which the speed of light is less.
• The molecules in colder layers of air are nearer to each other.
• The number of molecules in the optical path affects the speed of light.
• More the molecules, the lesser the speed.
• As a result, the speed of light in cold air decreases when compared to hot air (where molecules are far from each other).
• Also, cold air has a higher refractive index than hot air.
• As the refractive index increases, optical density also increases.
• This indicates that cold layers of air are optically denser mediums.