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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
Express 1° angular distance in kilometers.
Name the thermal zones of the earth.
How has the phenomenon of the ‘Midnight Sun’ come about?
Give a geographical reason for the period of twilight and dawn increases polewards.
Distinguish between :
Twilight and Dawn.
Give reasons for the following statement :
The duration of day and night is equal everywhere on 21st March and 23rd September.
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:
The variation in the lengths of day and night goes on increasing polewards.
Why are days and nights equal at all places on earth on September 23?
Examine the following statements
- The Earth is spherical in shape.
- The shape of the Earth is called a geoid.
- The Earth is flat.
Look at the options given below and choose the correct answer
