Awasome Light Travels At A Speed Of About 3.0 108 M S References. Web if light travels at a constant speed of 3.0 * 10^8 m/s and continues for 12.3 nanoseconds, the distance covered can be calculated: Web the speed of light in empty space is a universal physical constant.this means it is the same everywhere in empty space and does not change with time.

Distance traveled by light pulse in miles = [ (3.0 x 10^8 m/s) / (1609.34 m/mile)] x (0.1 s) simplifying the expression: Web substituting the values calculated earlier: You can perform the calculation in three steps:





