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प्रश्न
On which two days are the days and nights equal all over the world and why ? What name do you give to these days ?
उत्तर
On 21st March and 23rd September the days and flights are equal all over and the world due to the sun’s rays vertical on the equator. The name is Equinox of this position.
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संबंधित प्रश्न
What are the seasons in the Northern and the Southern Hemispheres on 23rd September?
Give reasons for the following
The speed of the rotation of the earth is greater at the Equator than at the Arctic Circle.
Give reasons for the following
Noon is hotter than morning.
On which dates does the sunshine vertically overhead at
(a) Equator,
(b) Tropic of Cancer.
(c) Tropic of Capricorn?
With the help of a diagram describe the heat zones.
Distinguish between :
Twilight and Dawn.
At which latitude is the Sun overhead on 22nd – December?
When does the summer solstice occur ?
Give reasons for the following statement:
Daylight decreases as we go polewards from March 21st to June 21st in the Southern Hemisphere
Give reasons for the following:
The variation in the lengths of day and night goes on increasing polewards.
