Advertisements
Advertisements
प्रश्न
What considerations have been made while deciding the IDL?
उत्तर
The crossing of the 180-degree prime meridian can result in the change of time zone. Thus some precautions have to be taken to avoid the confusions in the time zones. Thus the date and time may have to be changed to incorporate this. This has to be made by considering the Greenwich 180 degree prime meridian. Two precautions have to be considered while doing this-
- The direction of travel - The sun travels from east to west and the earth rotates from west to east. Thus the countries in the west, 12.00 at midnight is the end of the day and the countries of the east, it is the start of the day. This has to be considered.
- The Current day and date - When we travelling across the meridian, the day and the date changes. While travelling from east to west, one day has to add to the day of commencing the journey. But while travelling from west to east, the same day is considered upon arrival.
APPEARS IN
संबंधित प्रश्न
If it is Wednesday 10 a.m. at 15° E meridian, then what will be the time at IDL?
Give geographical reason.
The day starts in Pacific Ocean on the earth.
While crossing the IDL, what changes will you make?
Why doesn’t the IDL pass through land?
Why is the IDL considered with respect to the 180° meridian only?
Using an atlas, tell if, on the following route, the IDL will be crossed and show it on the map.
Mumbai - London - New York - Los Angeles - Tokyo
choose the odd one.
Match the following
| A | B |
| 0° line of latitude | Pole |
| 0° line of longitude | International Date Line |
| 180° line of longitude | Greenwich |
| 90° line of latitude | Equator |
Using an atlas, tell if, on the following route, the IDL will be crossed and show it on the map.
Delhi - Kolkata - Singapore - Melbourne
Using an atlas, tell if, on the following route, the IDL will be crossed and show it on the map.
Delhi - London - New York
