Tru Physics

Tag: Planck's Law

  • Wien’s Displacement Law

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    Introduction Wien’s Displacement Law, formulated by physicist Wilhelm Wien in 1893, explains the distribution of electromagnetic radiation emitted by a black body in thermal equilibrium. The law reveals a fascinating correlation between the peak wavelength of a black body’s spectral radiance and its temperature. Basic Principle of Wien’s Displacement Law The law states that the…

  • Planck’s Law

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    Introduction Planck’s law describes the spectral density of electromagnetic radiation emitted by a black body in thermal equilibrium at a given temperature. The law is named after Max Planck, who was the first to propose it in 1900. It corrected the known limitations of the Rayleigh-Jeans law and Wien’s displacement law and marked the birth…

  • Ultraviolet (UV) Radiation

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    Introduction Ultraviolet (UV) radiation is a type of electromagnetic radiation that lies beyond the violet end of the visible light spectrum and before X-rays. The wavelengths of UV radiation range from 10 nm to 400 nm, and they are typically divided into three types: UVA, UVB, and UVC. Planck’s Law UV radiation, like all electromagnetic…