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As the electrons in Bohr orbit of hydrog...

As the electrons in Bohr orbit of hydrogen atom passes from state n=2 to n=1, the kinetic energy K and potential energy U change as

A

K two-fold, U four-fold

B

K two-fold, U two-fold

C

K four-fold, U four-fold

D

K two-fold, U also two-fold

Text Solution

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The correct Answer is:
C
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MODERN PUBLICATION-ATOMS, MOLECULES AND NUCLEI-MCQ (Level -II)
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  2. The diagram shows the energy levels for an electron in a certain atom....

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  3. As the electrons in Bohr orbit of hydrogen atom passes from state n=2 ...

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  4. In hydrogen atom, the electron is moving round the nucleus with veloci...

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  5. The ionization onergy of Li^(++) is equal to

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  6. Electrons in a certain energy level n =n(1), can emit 3 spectral lines...

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  7. The largest wavelength in the ultraviolet region of the hydrogen spect...

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  8. Which of the following transition in Balmer series for hydrogen atom w...

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  9. v(1) is the frequency of the series limit of Lyman series, v(2) is the...

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  10. The number of electrons, neutrons and protons in a species are equal t...

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  11. The wavelength of the first spectral line in the Balmer series of hydr...

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  12. The wavelength of the first line of Lyman series for hyrogen atom is e...

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  13. Electron in hydrogen atom first jumps from third excited state to seco...

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  14. Hydrogen atom is excited from ground state to another state with princ...

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  15. A diatomic molecules is made of two masses m(2) and m(2) which are sep...

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  16. Hydrogen atom from excited state comes to the ground state by emitting...

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  17. The binding energies per nucleon for a deuteron and an alpha - particl...

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  18. The transition from the state n =4 to n =3 is a hydrogen like atom res...

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  19. The intensity of X-rays from a coolidge tube is plotted against wavele...

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  20. An H2 atom and Li^(++) ion are both in the second excited state. If l(...

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