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प्रश्न
Give reasons for the following :
Twilight is of longer duration in higher latitudes than at Equator.
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उत्तर
The duration of twilight at a place depends on the path of the Sun in the sky. In the low latitudes, where the Sun’s path is almost vertical, the duration of twilight is short. The Sun sinks below the horizon rapidly. In the middle and high latitudes the duration of twilight is long because at these latitudes the Sun has an inclined path.
संबंधित प्रश्न
Name the two reference lines with respect to which the distances of various places on the earth’s surface are measured?
On which two days are the days and nights equal all over the world and why ? What name do you give to these days?
Which is the longest and which is the shortest day in the Northern Hemisphere and why?
On which dates does the sunshine vertically overhead at Equator?
Name the longest day in the Southern Hemisphere.
At which latitude, is the Sun overhead on 21st June?
Name the two ends of the Axis of the Earth.
When does the winter solstice occur?
Give reasons for the following statement:
Beyond the tropics, the Sun is never overhead
Give reasons for the following:
There is no Twilight and Dawn on the Equator.
