Dimensional Formula of Velocity of Light in Vacuum will be M0L1T-1. Speed of sound The speed of sound c in a gas depends on among other things on the pressure on the gas the density and probably possibly on their viscosity. Also the values of some important physical constants and their symbols used to represent them are already written in my previous article about the different charts used in the measurement.
SI unit of Velocity of Light in Vacuum is denoted as ms-1.
Speed of light takes 1299792458 seconds for light in vacuum to pass 1 meter. Dimensional formula of Velocity is M 0 LT-1 Dimensional formula of Volume. The formula for speed is s dt where s equals the speed d is the distance covered and t is the time it took to cover the distance. Jan 21 2012 1 Firben.