Advertisements
Advertisements
प्रश्न
How is the longitude of a place determined?
Advertisements
उत्तर
The Longitude of a place can be determined by comparing its Local Time with Greenwich Time. Greenwich Time can be known either by radio or by means of a watch which keeps Greenwich Time. Captains of ships generally use a Chronometer for this purpose. A Chronometer is a timepiece which keeps accurate time and is not affected by a change in temperature. Now suppose that when it is 2 p.m. at Greenwich, another place shows 5 p.m. The difference between the times of the two places is 3 hours, which is 180 minutes. Thus the place is =180 / 4 = 45° away from the Prime Meridian and since its time is ahead of Greenwich. Its longitude will be 45° East.
संबंधित प्रश्न
Which line of longitude is used to fix the World Standard Time? State its value in degrees.
Make a detailed study of finding time with the help of longitudes. Give one practical example.
Name the two hemispheres of the Earth made by the equator?
What is the importance of Tropic of Capricorn?
What does the time ‘12 noon’ signify at any place?
A cricket match begins at 10.30 am on January 10 in New Zealand (time zone of +12). Tell the time in Greenwich when it is shown live on TV there.
Why do we have the concept of time zone?
The imaginary lines drawn vertically on Earth.
The network of lines of latitude and longitude.
Two opposite meridians form a ______.
