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Atmospheric Refraction

We can see th...

Question

We can see the sun before it has actually risen above the horizon (advance sunrise) and can see the sun for sometime after it has set below the horizon (delayed sunset), all because of atmospheric refraction.

A

True

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B

False

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Solution

The correct option is A True
Advance sunrise and delayed sunset is due to atmospheric refraction. Because of this, sun is visible about 2 minutes earlier than actual sunrise and till about 2 minutes after the actual sun set.

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Q. Fill in the following blanks with suitable words :
We can see the sun about ___ minutes before the actual sunrise and about ___ minutes after the actual sunset because of atmospheric ___

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We can see the sun about ................ minutes before the actual sunrise and about ................ minutes after the actual sunset because of atmospheric ................

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The advanced sunrise and the delayed sunset are because of the atmospheric refraction.

Q. Due to refraction, sunrise appears ______ sun comes to horizon and sunset appears______sun leaves horizon respectively.

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