The energy of the used light is high, then the momentum of the investigated particle has:
Correct answer: B. High uncertainty
- A. Less uncertainty
- B. High uncertainty
- C. High accuracy
- D. Equal uncertainty
Explanation
The uncertainty principle states that the uncertainty in the position of a particle and the uncertainty in its momentum must always be greater than or equal to Planck's constant divided by 2π. This means that if you know the position of a particle very precisely, you cannot know its momentum very precisely, and vice versa.
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About Quantum Theory and Radiation
Quantum theory treats electromagnetic radiation as packets of energy called photons, with energy proportional to frequency through E equals hf. The topic covers Planck's hypothesis, photon momentum, the photoelectric effect, threshold frequency, work function and wave particle duality, distinguishing quantised energy exchange from classical continuous radiation.
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