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प्रश्न
(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’?
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उत्तर
Rule: On crossing the date line, the ships adjust the dates according to the following rules :
(a) When crossing westward, towards Asia (from U.S.A. to Japan), a day must be added.
When crossing the date line, ship misses a day from the calendar and have ‘six day week’. If a ship crosses the date line on Monday, the next day will be Wednesday and not Tuesday.
(b) When crossing eastward towards America (from Japan to the U.S.A.) a day must be subtracted. When crossing the date line ships gain a day from the calendar and have an ‘eight-day week’. It repeats a day. If a ship crosses the date line on Monday, the next day will be again Monday and not Tuesday.
संबंधित प्रश्न
What are the Great Circle Routes?
State the use of the lines of longitude in relation to distance and time.
Into how many time zones, has the world been divided?
Give a reason for the following :
The opposite meridians of longitude form a Great Circle.
Give a reason for the following :
All parallel other than equator are not Great Circles.
Give a reason for the following :
A person, travelling from Mumbai to London, alters the time on his watch at several places.
What will be local time at Delhi 77° E longitude when it is 3 p.m. at Tokyo 139°E longitude?
From the westernmost point to the easternmost point, the local times of India extend over a time difference of ______.
True or False.
The time at a place in the east of Greenwich is ahead of that in Greenwich.
How are the hemispheres divided on the basis of lines of latitude and longitude? Explain with diagrams.
