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anonymous

  • one year ago

FAN AND MEDAL 1. Which of the following is correct according to Heisenberg's uncertainty principle? Only the position of the particle can be measured with finite accuracy. It is not possible to measure the position and momentum of the particle simultaneously. Only the momentum of the particle can be measured with finite accuracy. It is not possible to measure the position and momentum of the particle simultaneously with infinite accuracy.

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  1. Michele_Laino
    • one year ago
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    hint: in one dimension the Heisenberg's priciple reads: \[\Delta x \cdot \Delta {p_x} \geqslant \hbar \]

  2. Michele_Laino
    • one year ago
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    so momentum and position can not be measured both with arbitrary accuracy

  3. anonymous
    • one year ago
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    @Michele_Laino "It is not possible to measure the position and momentum of the particle simultaneously." ??

  4. Michele_Laino
    • one year ago
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    yes! we are not able to measure both of them, with arbitrary accuracy

  5. anonymous
    • one year ago
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    Which of the following is correct when the intensity of the light source is increased? The number of photons emitted by the light source in unit time increases. The total energy of the photons emitted per unit time decreases. Photons are emitted with more energy. Photons are emitted with more speed.

  6. anonymous
    • one year ago
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    @Michele_Laino

  7. Michele_Laino
    • one year ago
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    it is simple, since photons are emitted with more energy. The photon speed is the light speed which can not increase since the light speed is the highest speed in our Universe

  8. anonymous
    • one year ago
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    The number of photons emitted by the light source in unit time increases. is it this one

  9. Michele_Laino
    • one year ago
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    no, since the number of emitted photons depends on the frequency of the incident light

  10. Michele_Laino
    • one year ago
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    it is the third option

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