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प्रश्न
What is the relation between longitude and time?
Or
“There is a difference of 4 minutes of time for one degree of longitude”. Why?
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उत्तर
There is a close relation between longitude and time. The Earth makes one complete rotation of 360 degrees in 24 hours. It passes through 15 degrees is one hour or one degree in four minutes. Thus, there is a difference of 4 minutes of time for one degree of longitude. As the Earth moves from West to East, the places East of Greenwich gain time whereas the places West of Greenwich loose time.
संबंधित प्रश्न
State the longitudinal value in degrees of Indian Standard Meridian.
What are the Great Circle Routes?
What is the rate of change of time per degree of longitude?
Give a reason for the following :
All parallel other than equator are not Great Circles.
State two properties of lines of longitude.
What do you mean by “Meridians or Lines of Longitude”?
What adjustment has to be made when ships cross the International Date Line?
OR
Explain why a day appears to be lost in sailing round the world from east to west and gained when travelling from west to east.
“The degree of longitude decreases in length poleward”. Why?
What are the main characteristics of local time?
Fill in the blanks.
The Standard Meridian of India is ____________________.
