<P> The Planck constant ( denoted h , also called Planck 's constant ) is a physical constant that is the quantum of action , central in quantum mechanics . </P>
<P> The Planck constant ( denoted h , also called Planck 's constant ) is a physical constant that is the quantum of action , central in quantum mechanics . </P>
what are the units of h in the equation e = hf
what are the units of h in the equation e = hf
Planck 's constant
Planck 's constant