Question

a quantum is a unit of what?

Answer 1

a "quantum" describes the size of the object, not the object itself. A quantum is \(usually\) used to describe a particle of light, a photon

Answer 2

i thought quantum is a unit of energy...

Answer 3

@JFraser ???

Answer 4

thanks everyone :D

Answer 5

a quantum can be any kind of tiny amount, like a quantum of solace. Usually, we use the term in relation to photons, meaning energy