GK
THE UNIVERSE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What is precession?
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Change in the angle of Earth’s rotational axis
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Change in direction of Earth’s rotational axis
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Center of mass between two objects in space
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Change in direction of Earth’s elliptical
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Explanation:
Detailed explanation-1: -Precession – As Earth rotates, it wobbles slightly upon its axis, like a slightly off-center spinning toy top. This wobble is due to tidal forces caused by the gravitational influences of the Sun and Moon that cause Earth to bulge at the equator, affecting its rotation.
Detailed explanation-2: -Precession is a change in the orientation of the rotational axis of a rotating body. In an appropriate reference frame it can be defined as a change in the first Euler angle, whereas the third Euler angle defines the rotation itself.
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