Circle of Illumination


 
 
Concept Explanation
 

Circle of Illumination

The circle that divides the day from night on the globe is called the circle of illumination. This circle does not coincide with the axis. The earth takes about 24 hours to complete one rotation around its axis. The period of rotation is known as the earth day. This is the daily motion of the earth.

Sample Questions
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Question : 1

Circle of Illumination is _________________________

Right Option : A
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Question : 2

Observe the diagram given below and identify the shaded feature.

Right Option : B
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Explanation
 
 


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