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प्रश्न
What is the relation between longitude and time?
Or
“There is a difference of 4 minutes of time for one degree of longitude”. Why?
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उत्तर
There is a close relation between longitude and time. The Earth makes one complete rotation of 360 degrees in 24 hours. It passes through 15 degrees is one hour or one degree in four minutes. Thus, there is a difference of 4 minutes of time for one degree of longitude. As the Earth moves from West to East, the places East of Greenwich gain time whereas the places West of Greenwich loose time.
संबंधित प्रश्न
What is meant by IDL? State its importance.
Calculate the longitude of a place where the local time is 6.00 a.m. when the time is 9.00 p.m. at New Delhi on longitude 77° E.
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.
Name the two hemispheres of the Earth made by the equator?
What do you mean by the Longitude of a place?
Why do some countries have many time zones?
OR
What are ‘Time Zones’?
What are the main characteristics of local time?
Fill in the blanks.
The 0° Meridian is also known as ____________________.
True or False.
The time at a place in the east of Greenwich is ahead of that in Greenwich.
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.
