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A microscope with suitable photons is employed to locate an electron in an atom within a distance of 0.4A. What is the uncertainty involved in the measurement of its velocity?

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Werner Heisenberg considered the limits of how precisely we can measure the properties of an electron or other microscopic particle. He determined that there is a fundamental limit to how closely we can measure both position and momentum. The more accurately we measure the momentum of a particle, the less accurately we can determine its position. The converse is also true. This is summed up in what we now call the Heisenberg uncertainty principle. The equation is Delta x Delta (mv) ge (h)/(4 pi) The uncertainty in the position or in the momentum of a macroscopic object like a baseball is too small to observe. However, the mass of microscopic object such as an electron is small enough for the uncertainty to be relatively large and significant. If the uncertainty in velocity and position is same, then the uncertainty in momentum will be:

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Werner Heisenberg considered the limits of how precisely we can measure the properties of an electron or other microscopic particle. He determined that there is a fundamental limit to how closely we can measure both position and momentum. The more accurately we measure the momentum of a particle, the less accurately we can determine its position. The converse is also true. This is summed up in what we now call the Heisenberg uncertainty principle. The equation is Delta x Delta (mv) ge (h)/(4 pi) The uncertainty in the position or in the momentum of a macroscopic object like a baseball is too small to observe. However, the mass of microscopic object such as an electron is small enough for the uncertainty to be relatively large and significant. If the uncertainties in position and momentum are equal, the uncertainty in the velocity is:

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A N EXCEL PUBLICATION-STRUCTURE OF ATOM-QUESTION BANK
  1. The number of electrons, protons and neutrons in a species are equal t...

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  2. Write any two drawbacks of the Rutherford model of an atom.

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  3. Among the following electronic configurations, which one is correct?

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  4. Write the subshellwise electronic configurations of the following elem...

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  5. Write the subshellwise electronic configurations of the following elem...

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  6. Canal rays were discovered by discharge tube experiments conducted in ...

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  7. A microscope with suitable photons is employed to locate an electron i...

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  8. The number of protons, electrons and neutrons in a species are equal t...

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  9. Give any two postulates of Rutherford’s nuclear model of an atom

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  10. Write two main drawbacks of Rutherford’s atomic model

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  11. Representation of the orbital with quantum numbers n = 3,1 = 1 is

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  12. Which of the following sets of quantum numbers are NOT possible? n=2,l...

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  13. Which of the following sets of quantum numbers are NOT possible? n=1,...

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  14. Which of the following sets of quantum numbers are NOT possible? n=3,l...

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  15. Which of the following sets of quantum numbers are NOT possible? n=2,l...

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  16. In the photoelectric effect experiment certain soft metals are exposed...

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  17. Atomic orbitals are precisely distinguished by what are known as quant...

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  18. Atomic orbitals are precisely distinguished by what are known as quant...

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  19. Represent the orbitals given below: n = 2, l= 1

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  20. Atomic orbitals are precisely distinguished by what are known as quant...

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