Question 1718Navigation General

The correct answer is B) 24h 50m 00s. The length of the lunar day, also known as the tidal day or the synodic day, is the time it takes for the moon to return to the same position relative to the sun, which is approximately 24 hours and 50 minutes. This is because the moon orbits the Earth in the same direction as the Earth's rotation, and it takes the moon slightly longer to catch up to the same position relative to the sun compared to a solar day. The other options are incorrect because: A) 23h 56m 04s is the length of a sidereal day, which is the time it takes for the Earth to rotate once on its axis relative to the stars. C) 23h 03m 56s is not the correct length of the lunar day. D) 24h 00m 00s is the length of a solar day, which is the time it takes for the sun to return to the same position in the sky.