Hydrosphere — Geography STD 9 — Question

On account of the continuous rotation of the earth and revolution of the moon around the earth, whenever the moon comes in the front of the earth, tide takes place at an interval of 24 hours and 52 minutes and at the same time on the opposite side of the earth the interval is of 12 hours and 26 minutes.
The factors responsible for this time interval are the rotation of the earth and the rotation and revolution of the moon.