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It is a mind map of Planck's quantum theory topic. It covers the postulates of Planck's quantum theory, its applications, and its limitations.
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Mind map The amount of quantum energy varies directly with the radiation frequency. The size of the quantum is minimum at lower frequencies. But, at higher frequencies, it enlarges. A body can accept or release whole number multiples of quantum. Fractional quanta do not exist in reality. Energy in fractions of a quantum can neither emitted nor absorbed. A body can absorb and emit discontinuously tiny packets of energy. Each small energy packet is known as a quantum. Uniquely the term photon denotes light energy. Quantization of electromagnetic energies Energy is a particle Photon for light E = nhν E ∝ν Evidences Postulates Interaction of light with matter Planck quantum theory Blackbody radiations Photoelectric effect Quantum mechanics Limitations Applications Jayam chemistry adda Semi-conductor based gadgets It applies to only periodic systems In electronic devices Failed to explain radiation intensities Medical equipment MRI scan Atomic clock in satellites Applies to spin less oscillating bodies Quantum physics