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प्रश्न
Discuss the origin of tides. Illustrate the formation of Spring Tides.
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उत्तर
The tides have their origin in the gravitational forces of the sun and the moon. The earth rotates from west to east and revolves around the sun following an elliptical orbit. Similarly, the moon rotates from west to east and revolves around the earth along an elliptical orbit.
Spring Tides: Very high tides are caused when the sun and the moon and the earth are almost in the same line. Such high tides are called Spring Tides. The gravitational forces of the sun and the moon work together with combined force and thus a high tide is caused. The height of such Spring Tides is 20 percent more than that of the normal tides. Such tides take place twice every month (during the full moon and the new moon) and their timing is fixed.

Full moon and new moon and high tide
संबंधित प्रश्न
What are Spring?
Give reasons for the following:
There are two high and two low tides in a day.
Give reasons for the following:
Each day a tide is delayed by 26 minutes.
If there is a high tide at 7 am, find the timings of the next high and low tides on the same day at a given place.
In what way will the following depend on the tides?
Steering a ship
In what way will the following depend on the tides?
Fishing
In what way will the following depend on the tides?
Salt pans.
Describe the positive effects of tides.
How are tides caused?
How are tides related to navigation?
