00:01
We have to find out of the following which is not a motion of the earth.
00:06
The first motion is given to be rotation.
00:11
We know that the earth it rotates about its axis and it completes its rotation in 24 hours which we called a day.
00:22
So earth it has a motion of rotation.
00:25
The next option is precision.
00:31
Precision consists of a cyclic wobbling in the order orientation of earth's axis.
00:38
So the earth axis, it wobbles around and that motion is called precision.
00:44
And it takes around 25 ,772 years to complete one cycle of precision.
00:51
Though this motion is very slow, but the earth undergoes precisional motion.
00:58
The third one is revolution.
01:01
That after 365 or 366 days, the earth completes one revolution around the sun...