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प्रश्न
How can you say that the use of ‘Local Time’ is very inconvenient nowadays in practical life?
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उत्तर
Use of Local time is very inconvenient nowadays in practical life because if we have to travel through many countries, it will be convenient to us to follow one particular standard time, according to which we can set our watches with respect to a particular country and its standard time with reference to Greenwich or Prime Meridian (0° Longitude) to bring about international uniformity. This is known as Greenwich Mean Time (GMT). The Indian Standard time is 5 hrs 30 minutes ahead of GMT.
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 local time in Singapore (104°E) when it is 6.00 p.m. at Greenwich.
How far is it correct to say that local time is the Sun time?
State two properties of lines of longitude.
A ship crossing international dateline at mid-night on Wednesday Eastwards, find that it is mid-night Tuesday on the American side. Why?
What are the main characteristics of local time?
(a) What is the rule of changing the date while crossing the international date line?
(b) What is meant by ‘six-day week’ and ‘eight-day week’?
What are lines of latitude and longitude?
How are the hemispheres divided on the basis of lines of latitude and longitude? Explain with diagrams.
