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Three photons coming from excited atoms ...

Three photons coming from excited atoms hydrogen sample are picked up .There energies are `12.1eV, 10.2eV and 1.9eV` these photons must come from

A

a single atom

B

two atoms

C

three atoms

D

either two atoms or three atoms

Text Solution

Verified by Experts

The correct Answer is:
D


1.9 eV 10.2 eV photon may be emitted by one atom or two different atoms.
12.1 eV will be due to another atom.
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CP SINGH-BOHR THEORY-Exercises
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  2. The electron in the hydrogen atom jumps from excited state (n=3) to it...

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  4. In a laboratory experiment on emission from atomic hydrogen in a disch...

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  6. Consider an eelctron in the nth orbit of a hydrogen atom in the Bohr m...

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  8. The ratio of longest wavelength and the shortest wavelength observed i...

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  9. In terms of Rydberg's constant R, the wave number of the first Balman ...

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  10. The wavelength of the first line of the Balmer series of hydrogen atom...

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  11. The wavelength of the first line of Lyman series for hydrogen atom is ...

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  12. Every series of hydrogen spectrum has an upper and lower limit in wave...

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  13. Let v(1) be the frequency of series limit of Lyman series, v(2) the fr...

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

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  15. Whenever a hydrogen atom emits a photon in the Balmer series, it may...

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  16. A beam of ultraviolet light of all wavelength passes through hydrogen ...

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  17. When a hydrogen atom emits a photon in going from n=5 to n=1, its reco...

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  18. The radius of the hydrogen atom in its ground state is 5.3xx10^(-11) m...

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  19. A photon of energy 10.2 eV corresponds to light of wavelength lamda(0...

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  20. An electron with kinetic energy =E eV collides with a hydrogen atom in...

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