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प्रश्न
On what dates are the days and nights equal throughout the world ?
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उत्तर
21st March and 23rd September.
संबंधित प्रश्न
Name the two reference lines with respect to which the distances of various places on the earth’s surface are measured?
Give reasons for the following
The speed of the rotation of the earth is greater at the Equator than at the Arctic Circle.
Which is the longest and which is the shortest day in the Northern Hemisphere and why?
Describe how the duration of sunlight changes from the Equator to the Poles with respect to the angle of incidence during the solstices.
Name the longest day in the Southern Hemisphere.
Give reasons for the following statement:
The regions, near North Pole and South Pole, have six months of continuous day-light and darkness.
Give reasons for the following :
Twilight is of longer duration in higher latitudes than at Equator.
Give reasons for the following:
Altitude of the Sun varies at a place according to seasons.
Give reasons for the following:
There is no Twilight and Dawn on the Equator.
What is a Geoid?
