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प्रश्न
Explain how the longitude of a place affects the time.
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उत्तर
As the Earth rotates from west to east about its own axis, the zone of illumination moves slowly towards the west. This accounts for variation in the time of Sunrise and Sunset at different places on the Earth. The Earth takes 24 hours to complete one rotation. This means that 360 degrees of longitude are covered in a period of 24 hours. This gives rise to a time difference of [24 × 60/360] or 4 minutes for 1° of longitude. The time difference is to be added in case of places to the east of a point. In the case of places to the west, the time difference is to be subtracted. It is possible to calculate the time at a given place A from the time recorded at B and the longitude difference between stations A and B.
संबंधित प्रश्न
State with an example how time lost or gained is computed with reference to the International Date Line.
State the use of the lines of longitude in relation to distance and time.
Calculate the time at Durban (longitude 30°E) when the time is 7.00 a.m. at New York (75°W).
What is the difference between Prime Meridian and other meridians of longitude?
Give a reason for the following :
“The International Date Line is not a straight line coinciding with longitude 180 degrees.” Why?
From the westernmost point to the easternmost point, the local times of India extend over a time difference of ______.
Russia extends over ______ time zones.
True or False.
The standard longitude for Indian time is the 64° longitude.
How are the hemispheres divided on the basis of lines of latitude and longitude? Explain with diagrams.
The lines of longitude converge at the ______.
