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State Heisenberg’s uncertainty principle...

State Heisenberg’s uncertainty principle.

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Heisenberg.s uncertainty principle: It is not possible to measure simultaneously the exact position and exact momentum of a microscopic.particle.
Mathematical formula:`Delta x xx Delta p ge (h)/( 4pi )`
Where, `Delta x=` Uncertainty in position
`Delta p=` Uncertainty in momentum
`h, pi =` Constants
If `Delta x` is very small, `Delta p` will be quite large and vice-versa. So only one property is measured accurately at one time.
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Explain Heisenberg's uncertainty principle. Give its significance.

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 also true. This is summed up in what we now call the Heisenberg uncertainty principle. The equation si deltax.delta (mv)ge(h)/(4pi) The uncertainty in the position or in the momentum of a marcroscopic object like a baseball is too small to observe. However, the mass of microscopic object such as an electon 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 :

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 also true. This is summed up in what we now call the Heisenberg uncertainty principle. The equation si deltax.delta (mv)ge(h)/(4pi) The uncertainty in the position or in the momentum of a marcroscopic object like a baseball is too small to observe. However, the mass of microscopic object such as an electon 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 :

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 also true. This is summed up in what we now call the Heisenberg uncertainty principle. The equation si deltax.delta (mv)ge(h)/(4pi) The uncertainty in the position or in the momentum of a marcroscopic object like a baseball is too small to observe. However, the mass of microscopic object such as an electon is small enough for the uncertainty to be relatively large and significant. What would be the minimum uncetaintty in de-Broglie wavelength of a moving electron accelerated by potential difference of 6 volt and whose uncetainty in position is (7)/(22) nm?

The Heisenberg uncertainty principle can be applied to:

Which of the following is the most correct expression for Heisenberg's uncertainity principle?

Assuming an electron is confined to a 1nm wide region. Find the uncertainty in momentum using Heisenberg Uncertainty principle. You can assume the uncertainty in position Deltax as 1nm. Assuming p=Deltap , find the energy of the electron in electron volts.

What is the significance of uncertainty principle ?

OMEGA PUBLICATION-STRUCTURE OF ATOM -MULTIPLE CHOICE QUESTIONS (MCQ s)
  1. State Heisenberg’s uncertainty principle.

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  2. Emission of beta -particle is equivatent to:

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  3. The mass of the neutron is of the order of

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  4. The number of electrons and neutrons of an element is 18 and 20 respec...

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  5. Which of the following has longest wavelength ?

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  6. The value of Planck's constant is

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  7. Which of the following expresson gives the de-Broglie relationship ?

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  8. The total number of orbitals possible for the quantum number n is

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  9. The four quantum numbers of the valence electron of potassium are

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  10. An electron has principal quantum number 3. The number of its (i) shel...

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  11. The correct set of quantum numbers for a 4d electron is

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  12. No two electrons in an atom will have all the four quantum numbers sam...

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  13. The correct order of increasing energy of atomic orbitals is

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  14. The energy of an electron in nth orbit of hydrogen atom is

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  15. The triad of nuclei that is isotonic is

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  16. Bohr's model can explain

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  17. If the value of l = 2, what will be the value of principal quantum num...

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  18. Rutherford's experiment on scattering of alpha particles showed for th...

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  19. 3d-orbitals have

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  20. Number of unpaired electrons in the electronic configuration 1s ^(2) ,...

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  21. The two electrons in an orbital have different

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