Atmospheric Refraction

IMPORTANT

Atmospheric Refraction: Overview

This topic covers concepts such as twinkling of stars, advanced sunrise and delayed sunset, and mirage formation.

Important Questions on Atmospheric Refraction

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IMPORTANT
Science>Refraction of light>Atmospheric Refraction> Q 1

What is atmospheric refraction? Explain twinkling of stars using this phenomena.

HARD
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Science>Refraction of light>Atmospheric Refraction> Q 2

Which among the following are the phenomena observed on Earth are due to atmospheric refraction of light

MEDIUM
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Science>Refraction of light>Atmospheric Refraction> Q 3

Planets are seen as extended sources that are considered to be a collection of point sources of light. The total variation in the amount of light entering our eyes from them does not average out to be zero, thereby planets twinkle.

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Science>Refraction of light>Atmospheric Refraction> Q 4

Why sun appears reddish at sunrise and sunset? 

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Science>Refraction of light>Atmospheric Refraction> Q 5

As observed from earth, stars seems to be twinkling, the reason is-

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Science>Refraction of light>Atmospheric Refraction> Q 6

All layers of atmosphere has the same refractive index.