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The velocity of an electron in single el...

The velocity of an electron in single electron atom in an orbit

A

is independent of the atomic number of the element

B

increases with increases in atomic number

C

decreases with increases in atomic number

D

increases with increases in quantum number

Text Solution

Verified by Experts

The correct Answer is:
B
`V prop Z/n`
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ALLEN-SIMPLE HARMONIC MOTION-Exercise-01
  1. In problems involving electromagenetism it is often convenlent and inf...

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  2. Which of the following transitions in a hydrogen atom emits photon of ...

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  3. The velocity of an electron in single electron atom in an orbit

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  4. The energy level diagram is for a hypotenitcal atom. A gas of these at...

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  5. The wave number of the series limit of Lyman series is -

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  6. In a hypothetical system , a partical of mass m and charge -3 q is mov...

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  7. The diagram to the right shows the lowest four energy levels for an el...

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  8. An energy of 24.6 eV is required to remove one of that electrons from ...

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  9. A photons was absorbed by a hydrogen atom in its ground state, and the...

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  10. The K(alpha) X-ray emission line of tungsten occurs at lambda = 0.021 ...

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  11. Which of the following are the characterstics requried for the target ...

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  12. The wavelength of K(alpha) line for an element of atomic number 43 is ...

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  13. The wavelength of K(alpha) X-rays of two metals A and B are 4 // 1875 ...

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  14. On operating an X-ray tube at 1 kV. X-rays of minimum wavelength 6.22Å...

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  15. In an X-rays tube, electrons striking a target are brought to rest, ca...

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  16. The production of characteristic X-rays is due to-

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  17. The constant 'a' Mosely's law sqrt(v) - a(Z-b) for k(alpha)X-rays is r...

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  18. Charateristic X-rays are not obtained in the spectrum of H-atom bacaus...

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  19. For the decay of nucleus, the possible reason which is not true

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  20. Assuming that 200MeV of energy is released per fission of uranium ato,...

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