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प्रश्न
How has the phenomenon of the ‘Midnight Sun’ come about?
उत्तर
The sun's rays fall vertically on the Tropic of Cancer at the Northern Hemisphere's summer solstice. At the equator, sunlight lasts for 12 hours; at 23 1/2° N, it lasts for 13 hours and 27 minutes; at 66 1/2° N, it lasts for 24 hours. The areas outside the Arctic Circle have 24-hour daylight. This phenomenon, which only occurs near the poles, is known as the "Midnight Sun."
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संबंधित प्रश्न
Give reasons for the following
Vertical rays are hotter than slanting rays.
Describe the two interesting phenomena made by the circle of illumination viz., Solstice and Equinox.
Distinguish between :
Vertical and Slanting Rays.
Distinguish between :
Equinox and Solstice.
On what dates are the days and nights equal throughout the world ?
At which latitude is the Sun overhead on 22nd – December?
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 statement:
Beyond the tropics, the Sun is never overhead
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.
Why are days and nights equal throughout the world on 21st March and 23rd September?
