The discrete nature of radiation was introduced by:
Correct answer: B. Max Planck
- A. Hertz
- B. Max Planck
- C. J.J. Thomson
- D. Rayleigh-Jean
Explanation
The discrete nature of radiation was introduced by Max Planck in 1900 when he proposed the concept of quantized energy levels to explain the observed behavior of blackbody radiation. This marked the beginning of quantum theory, challenging classical physics and laying the foundation for the development of quantum mechanics.
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About Dawn of Modern Physics
Classical physics cannot explain blackbody radiation and related observations, leading to Planck’s quantum theory, in which energy is emitted or absorbed in discrete packets. Photons provide the particle model of light, with energy and momentum linked to frequency and wavelength, including the photoelectric effect and its threshold frequency.
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