The Planck Constant (h) is 6.626068 × 10^{-34} m^{2} kg/s. The relation of a photon's energy to frequency is E = h × f (E being energy, f being Frequency). The Reduced Planck Constant (or Dirac Constant, abbreviated ℏ) is h/2π, which is convenient because many equations incorporate this expression. Referenced by: Black-Body Radiation Bohr Model Carbon Monoxide (CO) Frequency Planck Function Saha Equation Stefan-Boltzmann Constant (σ) |