Question

The time taken by earth to complete one rotation about its own axis is:
A. $12$ hours
B. $16$ hours
C. $24$ hours
D. $365$ hours

Answer 1

Here we have to study about the earth’s rotation to see how much time the earth takes to complete one rotation.
Earth turns on its own axis, and it takes one day to do as such. In one day Earth makes one rotation on its axis. Earth additionally goes on a curved circle around the Sun. Also, it takes one year to make a total movement around the sun.

Complete step by step answer: Let us imagine a line going through the focal point of Earth that experiences both the North Pole and the South Pole. This line is called an axis. Earth turns around its axis, similarly as a top twists around its shaft. This turning development is called Earth's rotation. While the Earth turns on its axis, it additionally circles, or rotates around the Sun. This development is called revolution.
An astronaut in space will see that Earth requires $23$ hours, $56$ minutes, and $4$ seconds to make one complete turn on its axis. But since Earth moves around the Sun while it is rotation, the planet must turn simply somewhat more to arrive at a similar spot comparative with the Sun. Consequently the length of a day on Earth is really $24$ hours. At the equator, the Earth turns at a speed of around $1700\,km$ for every hour, except at the poles the development speed is almost nothing. For Earth to make one complete movement around the Sun takes $365.24$ days. This measure of time is the meaning of one year.

Hence, option C is correct.

Note: We may get confused between option C and D but the earth takes approximately $24$ hours to complete one rotation and $365$ days to complete one revolution.