How long (in ns) does it take light to travel 1.30 m in vacuum?

To determine the time it takes for a light to travel in vacuum given a specific distance, we need to know the speed of light. From literature, the speed of light in vacuum is measured to be 299,792,458 meter per second. This value was first measured by the astronomer Olaus Roemer in the year 1676 by his observations of the eclipses of the Jupiter's moon. It is a universal constant and is used in many calculations in physics. We calculate as follows:
time = distance / speed of light
time = 1.30 meter / 299,792,458 meter per second
time = 4.34x10^-9 s
time = 434 ns

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