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Atomic hydrogen is excited from the grou...

Atomic hydrogen is excited from the grounds state to the `n^(th)` state. The number of lines in the emission spectrum will be:

A

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

B

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

C

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

D

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

Text Solution

Verified by Experts

The correct Answer is:
B
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AAKASH SERIES-ATOMS-EXERCISE -IA
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  2. The wavelengths involved in the specturm of deuterium (""(1)D^(2)) are...

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  3. Atomic hydrogen is excited from the grounds state to the n^(th) state....

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  4. Which of the following is not correct in Bohr model of hydrogen atom ?

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  5. In the Bohr model of a hydrogen atom, the centripetal force is furnish...

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  6. The Bohr's model of atoms:

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  7. Bohr's model for the hydrogen atom predicts that the absorption spectr...

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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 emits a photon in the Balmer series

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  10. If n gt gt 1, then the dependence of frequency of photon emitted as a ...

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  11. When a hydrogen atom is raised from the ground state to fifth stale(ex...

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  12. Consider a spectral line resulting from the transition n = 5 to n = 1,...

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  13. In which of the following systems will the radius of the first orbit (...

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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 quantum number increases, the difference of energy between cons...

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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 proportion t...

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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 'r(n)'. The grap...

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