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When an electron in hydrogen atom is rai...

When an electron in hydrogen atom is raised from the ground state to an excited state its

A

P.E. increases and K.E. decreases

B

P.E. decreases and K.E. increases

C

both the energies decreases

D

both the energies increases

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CHETANA PUBLICATION-Structure of atoms and nuclei-EXERCISE
  1. Energy of the electron in n = oo is

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  2. Relation between K.E. and P.E. for an electron revolving in n^th bohr ...

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  3. When an electron in hydrogen atom is raised from the ground state to a...

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  4. If the P.E. of an electron in hydrogen atom is -27.2 eV, then its T.E....

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  5. The energy of an electron in the 1st Bohr orbit of hydrogen atom is

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  6. The energy of an electron in the 2nd orbit is -3.4 eV. So the energy o...

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  7. The ionisation potential of H2 atom is

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  8. The ratio of radii of the first three Bohr orbits is

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  9. The radius of first Bohr orbit is 0.53 A^@. The value of n if the radi...

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  10. The relation between force acting on the electron and principle quantu...

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  11. The unit of Rydberg's constant is

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  12. The shortest wavelength of Balmer series is given by

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  13. The longest wavelength in Paschen series is obtained when an electron ...

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  14. The Lyman series involves

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  15. In an atom, two electrons move around the nucleus in circular orbits t...

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  16. The energy in the ground state of hydrogen atom is -13.6 eV, then ener...

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  17. The De Broglie wavelength associated with a particle of mass m and vel...

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  18. In which of the following systems will the radius of the first orbit o...

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  19. The radius of the 4th orbit of the electron will be smaller than its 8...

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  20. In the spectrum of hydrogen atom which transition will yield longest w...

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