The energy of a photon can also be given as ![]() ![]() The energy emitted or absorbed by a body is always whole number multiple of quantum and never in fraction.While equation-2 shows that the energy of quanta or photon is inversely proportional to the wavelength of radiations. H = Planck’s constant = 6.6262 x 10 -34 J.sĮquation-1 shows that the energy of quanta or photon is directly proportional to the frequency of radiations emitted or absorbed. According to Planck, energy of a quantum or photon is given as:.This energy of the quantum is directly proportional to the frequency of radiations.Each quantum has a definite amount of energy.In the case of light, the quantum of energy is called a photon. Energy radiated by hot bodies is not continuous, rather it is emitted in the form of small “energy packets” or “energy pulses” known as quanta (singular is quantum).He gave the quantum theory of radiation explaining electromagnetic radiation and energy. In 1900, a German Physicist Max Planck had studied radiations emitted by hot black bodies and presented the results of his famous black body radiations experiments, which showed that light has a dual character, behaving like a particle as well as a wave.
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