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Give the expression for velocity of an e...

Give the expression for velocity of an electron in the `n^(th)` orbit. Explain the meanings of the symbols.

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MODERN PUBLICATION-ATOMS -Revision Exercise (Short Answer )
  1. Hydrogen atom in third excited state de-excites to the first excited s...

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  2. In Balmer series of hydrogen atom write - (i) the formula for calcul...

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  3. The short weve length limit for the Lyman series of the hydrogen spect...

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  4. Find out the wavelength of the electron orbiting in the ground state...

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  5. Show the Halpha and Hbeta transitions of hydrogen atom in an energy le...

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  6. State the three postulates of Bohr's theory of hydrogen atom.

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  7. A 12.5 eV electron beam is used to excite a gaseous hydrogen atom at r...

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  8. State Bohr's quantization condition of angular momentum. Calculate the...

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  9. Calculate the orbital period of the electron in the first excited stat...

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  10. According to second postulate of bohr model, the agnular momentum (Ln)...

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  11. Give the expression for velocity of an electron in the n^(th) orbit. E...

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  12. (a) Using de Broglie's hypothesis, explain with the help of a suitable...

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  13. (a) State Bohr's postulate to define stable orbits in hydrogen atom...

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  14. The grond state energy of hydrogen atom is 13.6 eV. If an electron m...

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  15. The radii of Bohr's orbit are directly proportional to

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  16. Using Bohr's postulate, derive the expression for the orbital period ...

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  17. Calculate the shortest and longest wavelength in Lyman series of hydro...

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  18. The first member of the Balmer series of hydrogen atom has wavelength ...

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  19. Calculate the wavelength of the first line in the Balmer series of hy...

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  20. An electron in a hydrogen atom jumps from n = 5 energy level to n = 1 ...

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