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प्रश्न
Explain why the lines of longitude are called meridians of longitude?
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उत्तर
Lines of longitude are lines which join all places having the same angular distance east or west of the Prime Meridian. All lines of longitude are semicircles of equal length. Lines of longitude are also called Meridians because of all places along lines of longitude experience mid-day at the same time.
संबंधित प्रश्न
What is the longitude of a place where the local time 1:15 p.m. when it is 4 a.m. at Chicago (88°W)?
Calculate the location of a place where the local time is noon when it is 7.30 p.m. at Greenwich.
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.
Which meridian is called Prime meridian?
How far is it correct to say that local time is the Sun time?
How can you say that the use of ‘Local Time’ is very inconvenient nowadays in practical life?
Why do some countries have many time zones?
OR
What are ‘Time Zones’?
Give a reason for the following :
The distance between two consecutive meridians is equal to about 111 kilometers only at the equator.
What will be local time at Delhi 77° E longitude when it is 3 p.m. at Tokyo 139°E longitude?
A ship crossing international dateline at mid-night on Wednesday Eastwards, find that it is mid-night Tuesday on the American side. Why?
