How long does the Earth take to complete one rotation on its axis?
A
24 hr 30 min 15 sec
B
23 hr 56 min 4 sec
C
24 hr
D
23 hr 52 min 21 sec
Correct Option:
B
Explanation
This is the Earth's sidereal rotation period, measured relative to distant stars. The familiar 24-hour day is the solar day. Earth has to rotate slightly more because it also moves along its orbit around the Sun.
