The uncertainty in momentum and position is due to its:
Correct answer: A. Property of matter and radiation
- A. Property of matter and radiation
- B. Two dimensional motion
- C. Extreme velocities
- D. Small size
Explanation
In order to find the position and momentum of matter, we need to observe these metrics. In order to observe them, we need to have radiation reflect off of the matter after interacting with it. Hence to precisely know the measurements, we first must precisely know the nature of the radiation (wavelength and energy). However, in order to know the nature of radiation, we need it to interact with matter. Thus this juxtaposition stemming from the inherent nature of matter and radiation gives rise to the uncertainty principle.
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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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