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प्रश्न
State the use of the lines of longitude in relation to distance and time.
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उत्तर
- Distance: The distance between two lines of longitude varies based on their location. At the Equator, the distance between each degree of longitude is approximately 111 kilometers. However, this distance decreases as you move toward the poles, where the meridians converge.
- Time: Longitude is also crucial for calculating time zones. The Earth is divided into 24 time zones, each corresponding to 15° of longitude. As the Earth rotates, the time changes by one hour for every 15° of longitude. The Prime Meridian (0° longitude) is used as the reference for Greenwich Mean Time (GMT), and local time is calculated based on the difference in longitude from the Prime Meridian.
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संबंधित प्रश्न
Give a reason the greenwich time is called Greenwich Mean Time.
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.
Name the two hemispheres of the Earth made by the equator?
What is the “Prime Meridian”?
Give a reason for the following :
When it is noon at Cairo (30°E), the local time in New York (75°W) is 5.00 a.m.
What adjustment has to be made when ships cross the International Date Line?
OR
Explain why a day appears to be lost in sailing round the world from east to west and gained when travelling from west to east.
When it is 7.30 pm on August 16 in Greenwich, it is ______ (time) on ______ (date) in Chennai.
Which place is used as a standard for time all over the world?
India is located in this hemisphere based on lines of longitude.
