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According to Bohr's theory, the radius o...

According to Bohr's theory, the radius of the `n^(th)` orbit of an atom of atomic number `Z` is proportional

A

`n`

B

`n^2`

C

`n^(-1)`

D

`n^(-2)`

Text Solution

Verified by Experts

The correct Answer is:
B
`r_n = 0.529 n^2 Å`
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MODERN PUBLICATION-STRUCTURE OF ATOM-COMPETITION FILE ,OBJECTIVE TYPE QUESTIONS (A. MULTIPLE CHOICE QUESTIONS)
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  2. How many spectrual lines are emitted by atomic Hydrogen, when an elect...

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  4. What transition in He^(o+) ion shall have the same wave number as ...

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  5. The ratio of the differrence between the first and second Bohr orbit e...

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  6. Which of the following transitions have minimum wavelength

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  7. In a hydorgen atom, enegry of the first excited state is -3.4 eV. Find...

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  8. The ratio of the radii of the first three Bohr orbit in H atom is

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  9. The ratio of the frequency corresponding to the third line in the lyma...

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  10. Three energy levels E1, E2 and E3 and the wave lengths produced by tra...

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  11. The de-Broglie wavelength of an electron is 600 nm. The velocity of th...

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  12. It travelling at same speeds, whichof the following mater waves have t...

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  13. If uncertainty in possition of electron is zero, then the uncertainty...

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  14. Which of the following orbitals does not make sense ?

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  15. Two electrons occupying the same orbital are distinguished by :

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  17. For a given value of quantum number l , the number of allowed values o...

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  18. The maximum number of 4d - electrons having spin quatum number s = + 1...

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  19. The maximum number of electrons in a subshell is given by the expressi...

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  20. A subshell with n=6 , l= 2 can accommodate a maximum of

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