Question

What is Planck's constant ?

Answer 1

Answer:

The Planck constant, or Planck's constant, is a fundamental physical constant denoted h, and is of fundamental importance in quantum mechanics. A photon's energy is equal to its frequency multiplied by the Planck constant. Due to mass–energy equivalence, the Planck constant also relates mass to frequency.

Formula:

E=hf

E = energy

h = Planck's constant

f = frequency

Answer 2

Answer:

The Planck constant (Planck's constant) says how much the energy of a photon increases, when the frequency of its electromagnetic wave increases by 1 (In SI Units). It is named after the physicist Max Planck. ... In SI Units the Planck constant is exactly 6.62607015×10−34 J.s