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प्रश्न
How has the phenomenon of the ‘Midnight Sun’ come about?
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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
Which temperature zone receives almost vertical rays of the sun and which zones receive slanting rays?
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:
25th of December in New Zealand may be one of the hottest days of the year.
Give a geographical reason for the length of day and night is not equal at all places on the earth.
Describe the two interesting phenomena made by the circle of illumination viz., Solstice and Equinox.
On which dates does the sunshine vertically overhead at Equator?
Distinguish between :
Twilight and Dawn.
Name the shortest day in the Southern Hemisphere.
At which latitude, is the Sun overhead on 21st June?
Give reasons for the following Statement :
The areas, lying on the Equator, have their duration of day-light almost constant throughout the year.
