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प्रश्न
Describe the two interesting phenomena made by the circle of illumination viz., Solstice and Equinox.
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उत्तर
The circle of illumination is the lighted part of the earth by the sun. On June 21, Northern Hemisphere enjoys the longest day due to the sun’s position overhead at the Tropic of Cancer. It is called the Summer Solstice. On the other hand, when the sun is overhead on the Tropic of Capricorn, the Southern Hemisphere gets the longest day on December 22, which is known as Winter Solstice. The dates of Equinox are 21st March and 23rd September when the days and nights are equal all over the world and there are spring and autumn seasons in Northern Hemisphere and autumn and spring in Southern Hemisphere respectively.
संबंधित प्रश्न
Give reasons for the following
Vertical rays are hotter than slanting rays.
Name the longest day in the Northern Hemisphere.
Name the longest day in the Southern Hemisphere.
On what dates are the days and nights equal throughout the world ?
Name the two ends of the Axis of the Earth.
When does the winter solstice occur?
Give reasons for the following statement:
On the 22nd of December, the altitude of the midday Sun at Colombo is different from that of Delhi.
Give reasons for the following :
Tropical latitudes are the hottest part of the’Earth.
Give reasons for the following:
The variation in the lengths of day and night goes on increasing polewards.
Daylight increases as we go polewards in summer in The Northern Hemisphere. Why?
