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प्रश्न
What is meant by IDL? State its importance.
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उत्तर
IDL means the International Date Line, which is along 180° E & W. The date or day changes while crossing this line i.e. while there is Monday in the Eastern Hemisphere i.e.
0° – 180°E, there will be Sunday in the Western Hemisphere i. e. 0° – 180° W.
संबंधित प्रश्न
Which line of longitude is used to fix the World Standard Time? State its value in degrees.
Give a reason for the lines of longitude are also called Meridians of longitude.
An important programme was to be broadcast from Mumbai at 7.30 p.m. This was heard by some Indian sailors near Ivory Coast in West Africa at 20°W longitude. What was the local time there?
What is the time and day at Mumbai (73°E) when it is Sunday at 10.30 p.m. at Shillong (92°E)? Give a reason to support your answer.
How many lines of longitude are there?
How is the longitude of a place determined?
“The degree of longitude decreases in length poleward”. Why?
What is the local time when it is noon at a place?
A cricket match begins at 10.30 am on January 10 in New Zealand (time zone of +12). Tell the time in Greenwich when it is shown live on TV there.
What is known as Eastern Hemisphere?
