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Electron in a hydrogen atom undergoes tr...

Electron in a hydrogen atom undergoes transition from `n_1` to `n_2` , where `n_1 and n_2` are the principal quantum numbers of two given states. According to Bohr's theory , if the time period of the electron in the initial state be eight times that in the final state , the possible values of `n_1 and n_2` will be, respectively

A

4 and 2

B

8 and 2

C

8 and 1

D

6 and 4

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The correct Answer is:
A
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CHHAYA PUBLICATION-ATOM-EXERCISE(Multiple Choice Questions)
  1. The total energy of an electron in the ground state , of hydrogen ato...

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  2. What is the minimum energy (in eV) necessary to liberate an electron ...

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  3. Electron in a hydrogen atom undergoes transition from n1 to n2 , where...

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  4. Atomic number of Helium is 2. what is the energy of the ground state ...

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  5. Ionisation potential of an atom is 24.6 V . How much energy is require...

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  6. In Bohr's model of hydrogen atom ,

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  7. Ground state energy of hydrogen atom is -13.6 eV . If the electron in ...

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  8. The electron in a hydrogen atom has been excited to the n -th state. W...

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  9. If the electron in a hydrogen atom is raised to the third orbit, how m...

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  10. According to Bohr's model , the ratio of the energies of the electron...

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  11. The quantised physical quantity of an atomic electron, according to B...

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  12. An one -electron atom has an energy of -3.4 eV. The kinetic energy of...

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  13. An one -electron atom has an energy of -3.4 eV. The potential energy...

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  14. An electron is in the third orbit of a hydrogen atom. If h =6.6 xx10^...

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  15. The ratio between the radii of the fourth and the second electron orbi...

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  16. The ratio between the electron velocities in the second and in the thi...

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  17. The ratio between the electron revolution fraquencies in the first and...

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  18. In an inelastic collision an electron excites as hydrogen atom from it...

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  19. Energy required for the electron excitation in Li^(2+) from the first...

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

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