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Three photons coming from excited atomic...

Three photons coming from excited atomic hydrogen sample are picked up. Their energies are 12.1eV, 10.2 eV and 1.9 eV. These photons must come from

A

a single atom

B

two atoms

C

three atoms

D

either two atoms or three atoms

Text Solution

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The correct Answer is:
D
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AAKASH SERIES-ATOMS-EXERCISE -IA
  1. The Bohr's model of atoms:

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

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

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  4. Whenever a hydrogen atom emits a photon in the Balmer series

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

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

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

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

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

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

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

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

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  13. The angular momentum of an electron in a hydrogen atom is proportion t...

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

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  15. In a hydrogen atom the radius of n^(th) Bohr orbit is 'r(n)'. The grap...

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  16. The number of spectral lines in hydrogen atom are

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  17. An electron in the ground state of hydrogen atom is revolving in anti ...

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  18. When electron falls from a higher energy to a lower energy level the d...

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  19. The de-Brogilc wavelength of an electron in the first Bohr orbit is

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  20. Bohr's basic idea of discrete energy levels in atorns and the of Photo...

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