As the temperature of the black body is raised, the black body radiations become richer in:
Correct answer: C. Shorter wavelengths
- A. Intermediate wavelengths
- B. Longer wavelengths
- C. Shorter wavelengths
- D. Low frequencies
Explanation
According to Wien's Law, as the temperature of the blackbody increases, the wavelength of emitted radiations decreases.Hence the answer is CThe intensity (or flux) at all wavelengths increases as the temperature of the blackbody increases. The total energy being radiated (the area under the curve) increases rapidly as the temperature increases (Stefan-Boltzmann Law).
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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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