Spectroscopy

Physics:

E = hv

• E = Energy of a photon
• h = Planck's constant (6.62 x 10^-27)
• v = frequency of the radiant energy

E = (hc) / wavelength

• E = Energy of a photon
• h = Planck's constant (6.62 x 10^-27)
• c = velocity (varies with the medium through which the radiant energy is passing; 3 x 10^10 cm/sec in a vacuum)
• wavelength = wavelength of the radiant energy

So, shorter wavelengths have a higher energy and higher frequencies have a higher energy.