# What is Dimensional Formula of Velocity of Light in Vacuum?

Posted in Dimensional Formulae | Email This Post |Velocity of Light in Vacuum is defined as the ratio of distanced travelled by light in vacuum to the time taken to do so. For Example: It takes 1/299792458 seconds for light in vacuum to pass 1 meter.

Mathematically,

Velocity of Light in vacuum = distance travelled / time taken = L/T.

Dimensional Formula of Length = M^{0}L^{1}T^{0}

Dimensional Formula of Time = M^{0}L^{0}T^{1}

Putting these values in above equation we get,

**Dimensional Formula of Velocity of Light in Vacuum = M ^{0}L^{1}T^{-1}**

SI unit of Velocity of Light in Vacuum is ms^{-1}

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