# What is Dimensional Formula of Planck’s Constant?

Posted in Dimensional Formulae | Email This Post |The Planck’s constant (*h*) can be defined as a proportionality constant that relates the energy (*E*) of a photon to the frequency (*ν*) of its associated electromagnetic wave.

Mathematically,

**Planck’s Constant ( h) = Energy(E) / frequency (ν).**

Dimensional Formula of energy = M^{1}L^{2}T^{-2}.

Dimensional Formula of frequency = M^{0}L^{0}T^{-1}.

Putting these values in above equation we get,

**Dimensional Formula of Planck’s constant = M ^{1}L^{2}T^{-1}.**

SI unit of Planck’s constant is joule-seconds (j-s).

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