The spectrum of the black body is:
Correct answer: B. Continuous
- A. Line
- B. Continuous
- C. Band
- D. All of these options are correct
Explanation
The spectrum of a black body is continuous, meaning it contains a continuous range of wavelengths without any distinct breaks or lines. This is a fundamental characteristic of black body radiation as described by Planck's law and is observed in phenomena like thermal radiation.
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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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