GK
SOLAR SYSTEM
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
Which one takes 24 hours?
|
|
rotation
|
|
|
revolution
|
|
|
Either A or B
|
|
|
None of the above
|
Explanation:
Detailed explanation-1: -The earth takes about 24 hours to complete one rotation on its axis . The period of rotation is known as the earth day. This is the daily motion of the earth.
Detailed explanation-2: -Earth’s rotation on its axis occurs every 24 hours. As Earth rotates, it seems like the sun is moving across the sky, but it’s really the Earth that is spinning. It takes 24 hours to complete one rotation, which is why there are 24 hours in one day.
Detailed explanation-3: -Earth rotates once in about 24 hours with respect to the Sun, but once every 23 hours, 56 minutes and 4 seconds with respect to other distant stars (see below). Earth’s rotation is slowing slightly with time; thus, a day was shorter in the past.
There is 1 question to complete.