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प्रश्न
Make a detailed study of finding time with the help of longitudes. Give one practical example.
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उत्तर
Indian Standard Time is based on 82 1/2° E longitude. So if the time in India is 12 noon, so it will be 6.30 A.M. in England or GMT. The time difference between 0° and 82 1/2° E will be 82.5 × 4 – 330 minutes or 330 ÷ 60 = 5 1/2 hours. So there is a difference of 5 1/2 hours between India and England, as England lies in the west, so the time will be 5 1/2 hours less than India.
संबंधित प्रश्न
Which line of longitude is used to fix the World Standard Time? State its value in degrees.
Give a reason the greenwich time is called Greenwich Mean Time.
Calculate the time at Durban (longitude 30°E) when the time is 7.00 a.m. at New York (75°W).
Why are letters E or W added to longitude values?
What is the importance of Tropic of Capricorn?
Give a reason for the following :
All parallel other than equator are not Great Circles.
What will be local time at Delhi 77° E longitude when it is 3 p.m. at Tokyo 139°E longitude?
What does the time ‘12 noon’ signify at any place?
Statement I: The lines of latitude on Earth are used to find the location of a place and define the heat zones on Earth.
Statement II: The lines of longitudes on Earth are used to find the location of a place and to calculate time.
Choose the correct option:
What are lines of latitude and longitude?
