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प्रश्न
Give reasons for the following statement:
The regions, near North Pole and South Pole, have six months of continuous day-light and darkness.
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उत्तर
On account of the obliquity of the earth’s axis, for six months i.e., from March 21 to Sept. 23, the north pole is inclined towards the Sun and is always in the light. During this period the South pole is inclined away from the Sun and is throughout in the dark. Hence it is a day for six months at the north pole and night at the south pole. But from September 23 to March 21st the case is just the opposite. The north pole is inclined away from the Sun and is in the dark while the south pole is inclined, towards the Sun and is in the light.
संबंधित प्रश्न
What is the globe? State the importance of a globe.
Give a reason for the following:
A globe is the most popular model of the earth.
Name the two reference lines with respect to which the distances of various places on the earth’s surface are measured?
How has the phenomenon of the ‘Midnight Sun’ come about?
What are the seasons in the Northern and the Southern Hemispheres on 23rd September?
Give reasons for the following
Vertical rays are hotter than slanting rays.
At which latitude, is the Sun overhead on 21st June?
When does the summer solstice occur ?
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 :
Seasons are reversed between Northern and Southern Hemisphere.
