Question

What is the difference between Einstein's equation of energy and Plancks constant

Answer 1

Ans.  The Planck–Einstein relation[1][2][3] is also referred to as the Einstein relation,[1][4][5] Planck's energy–frequency relation,[6] the Planck relation,[7] and the Planck equation.[8] Also the eponym Planck formula[9] belongs on this list, but also often refers to Planck's law instead.[10][11] These various eponyms are far from standard; they are used only sporadically, neither regularly nor very widely. They refer to a formula integral to quantum mechanics, which states that the energy of a photon, E, known as photon energy, is proportional to its frequency.