Approximately how much time does it take for light to travel from the moon to the earth?

Light takes approximately 1.28 seconds to travel from the Moon to the Earth, which corresponds to option [C]. This duration is calculated based on the average distance between the Moon and Earth, which is about 384,400 kilometers (238,855 miles). Since light travels at a speed of approximately 299,792 kilometers per second (or 186,282 miles per second) in a vacuum, the time it takes for light to cover this distance is approximately 1.28 seconds. This calculation is crucial for astronomical observations and communications between Earth and lunar missions, where precise timing of signals and data transmission relies on understanding the speed of light. Although the exact distance can vary slightly due to the Moon’s elliptical orbit around Earth, the speed of light remains a constant factor in determining the time it takes for light to travel between these celestial bodies, providing a reliable measure for scientific and practical purposes.