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प्रश्न
What is meant by Equinox?
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उत्तर
Equinox means the time when the days and nights are equal all over the world. The particular dates of equinoxes are 21st March (Spring or Vernal Equinox) and 23rd September (Autumnal Equinox).
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संबंधित प्रश्न
What is a geographic grid?
What are the seasons in the Northern and the Southern Hemispheres on 23rd September?
Give reasons for the following
Days and nights are equal at all places on earth on March 21.
Give reasons for the following
Vertical rays are hotter than slanting rays.
On which two days are the days and nights equal all over the world and why ? What name do you give to these days?
Distinguish between :
Twilight and Dawn.
When does the summer solstice occur ?
When does the winter solstice occur?
Give reasons for the following:
There is no Twilight and Dawn on the Equator.
Give reasons for the following:
The variation in the lengths of day and night goes on increasing polewards.
