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प्रश्न
Why is it 5.30 p.m in India when it is 12.00 noon in London?
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उत्तर
India and the United Kingdom lie on different longitudes. Each degree of longitudes corresponds to a difference of four minutes. This is because the earth rotates 360° in 24 hours, 1° in 4 minutes. The standard meridian of India is 82° 30′ E, and that of London is 0°. This means a difference of 4 minutes x 82.5 = 330 minutes = 5.5 hours. So when it is 12 noon in London, it is 5.30 p.m. in India.
APPEARS IN
संबंधित प्रश्न
State the longitudinal value in degrees of Indian Standard Meridian.
What is the “Prime Meridian”?
Explain how the longitude of a place affects the time.
Why do some countries have many time zones?
OR
What are ‘Time Zones’?
Give a reason for the following :
“The International Date Line is not a straight line coinciding with longitude 180 degrees.” Why?
Give a reason for the following :
A person, travelling from Mumbai to London, alters the time on his watch at several places.
Russia extends over ______ time zones.
When it is 7.30 pm on August 16 in Greenwich, it is ______ (time) on ______ (date) in Chennai.
Why do we have the concept of time zone?
The network of lines of latitude and longitude.
