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The wave number of energy emitted when e...

The wave number of energy emitted when electron jumbs from fourth orbit to second orbit in hydrogen in 20,497 `cm^(-1)`. The wave number of energy for the same transition in `He^(+)` is

A

5,099 `cm^(-1)`

B

20,497 `cm^(-1)`

C

`40, 994 cm^(-1)`

D

81,988 `cm^(-1)`

Text Solution

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The correct Answer is:
D
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AAKASH SERIES-ATOMS-EXERCISE -II
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  2. A hydrogen atom emits a photon corresponding to an electron transtion ...

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  3. The wave number of energy emitted when electron jumbs from fourth orbi...

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  4. In a Bohr atom the electron is replaced by a particle of mass 150 time...

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  5. If the wavelength of first member of Balmer series of hydrogen spectru...

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  6. A hydrogen-like atom (atomic number Z) is in a higher excited state of...

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  7. Electrons from n = 2 to n= 1 in hydrogen atom is made to fall on a met...

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  8. Let vartheta(1) be the frequency of the series limit of the Lyman seri...

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  9. The transition from the state n = 4 to n = 3 in a hydrogen like atom r...

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  10. Energy required for the electron excitation in Li++ from the first to ...

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  11. What would be maximum wavelength for Brackett sereis of hydrogen-spect...

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  12. What would be the radius of second orbit of He^(+)ion ?

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  13. The wavelength of Lymen series for first number is

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  14. The magnetic moment (mu) of a revolving electron around the nucleus ve...

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  15. What is ratio of Bohr magneton to the nuclear magneton ?

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  16. Out of the following which one is not a possible energy for a-photon t...

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  17. Ionization potential of hydrogen atom is 13.6 eV hydrogen atoms in the...

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  18. A hydrogen atom initially in the ground level absorbs a photon which e...

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  19. The speed of the electron in a hydrogen atom in the n = 3 level is

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  20. Hydrogen atom in ground state is excited by a monochromatic radiation ...

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