The length of a tidal day for a mixed semidiurnal tide is ________ hours.
A) 12
B) 12.4
C) 24
D) 24.8
E) 48

Question

Quizplus · Accepted Answer

A tidal day for a mixed semidiurnal tide, which features two high tides and two low tides of different sizes in a lunar day, is 24.8 hours. This is because the Earth must rotate a little longer each day to catch up to the moon, resulting in a tidal cycle that is slightly longer than a standard 24-hour day.

The Length of a Tidal Day for a Mixed Semidiurnal