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When a hydorgen atom is excited from gro...

When a hydorgen atom is excited from ground state to first excited state then :

A

`(n(n+1))/(2)`

B

`(n(n-1))/(2)`

C

`((n-1)^(2))/(2)`

D

`((n+1)^(2))/(2)`

Text Solution

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The correct Answer is:
B
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AAKASH SERIES-ATOMS-EXERCISE -IA
  1. The diagram shows the energy levels for an electron in a certain atom....

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  2. The wavelengths involved in the spectrum of deuterium (.(1)^(2)D) are...

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  3. When a hydorgen atom is excited from ground state to first excited sta...

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  4. Which of the following is not correct about bohr model of the hydrogen...

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  5. In the Bohr's model of a hydrogen atom, the centripetal force is furni...

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  6. The Bohr model of atoms

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  7. Bohr's model of hydrogen atom.

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  8. Three photons coming from excited atomic-hydrogen sample are picked up...

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  9. Whenever a hydrogen atom emitsa photon in the Balmer series .

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  10. If wavelength of photon emitted due to transition of an electron from ...

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  11. When a hydrogen atom is raised from the ground state to an excited sta...

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  12. Consider a spectral line resulting n = 5 to n = 1, in the atom and los...

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  13. In which of the following systems will be the radius of the first orbi...

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  14. If the radius of an orbit is r and the velocity of electron in it is v...

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  15. As the n (number of orbit) increases, the difference of energy between...

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  16. In which of the following transitions will the wavelength be minimum ?

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  17. Which of the following parameters are the same for all hydrogen like a...

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  18. The angular momentum of an electron in a hydrogen atom is proportional...

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  19. The electron in a hydrogen atom makes a transition from an excited sta...

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  20. In a hydrogen atom, the radius of n^(th) bohr orbit is rn. The graph b...

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