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प्रश्न
Give reasons for the following :
The duration of day and night is equal everywhere in the world on 21st March
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उत्तर
On March 21 rays of the sun fall vertically on the equator, and because of the inclined axis of the earth, the circle of illumination passes through the two poles resulting in equal duration of day and night all over the world.
संबंधित प्रश्न
Name the two hemispheres of the earth made by the Equator.
Give reasons for the following
The speed of the rotation of the earth is greater at the Equator than at the Arctic Circle.
Describe how the duration of sunlight changes from the Equator to the Poles with respect to the angle of incidence during the solstices.
With the help of a diagram describe the heat zones.
Distinguish between:
Equinox and Solstice
Name the shortest day in the Northern Hemisphere.
When does the summer solstice occur ?
When is the spring equinox?
Give reasons for the following:
Altitude of the Sun varies at a place according to seasons.
Why are days longer than nights in summer?
