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The distance between 4th and 3rd Bohr or...

The distance between `4th` and `3rd` Bohr orbits of `He^(+)` is `:`

A

`2.645xx10^(-10)`m

B

`1.322xx10^(-10)`m

C

`1.851xx10^(-10)`m

D

None of these

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NARENDRA AWASTHI-ATOMIC STUCTURE-Exercise
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  2. The kinetic and potential energy (in eV) of electron present in third ...

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  3. The distance between 4th and 3rd Bohr orbits of He^(+) is :

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  4. What atomic number of an element "X" would have to become so that the ...

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  5. The ratio of velocity of the electron in the third and orbit of Li^(2+...

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  6. If radius of second stationary orbit (in Bohr's atom) is R then radius...

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  7. Which state of the triply ionized Beryllium (Be^(3+)) has the same orb...

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  8. Select the incorrect graph for velocity of e^(-) in an orbit vs. Z, 1/...

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  9. What is the frequency of revolution of electron present in 2nd Bohr's ...

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  10. According to Bohr's atomic theory, which of the following is correct ?

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  11. Number of waves produced by an electron in one complete revolution in ...

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  12. Which of the following statement does not form part of Bohr's model o...

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  13. What is the separation energy (in eV ) for Be^(3+) in the first excite...

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  14. If in Bohr's model, for unielectronic atom, time period of revolution ...

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  15. Which of the following is discreted in Bohr's theory?

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  16. What is the ratio of time periods (T(1)//T(2)) in second orbit of hydr...

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  17. The mass of an electron is m, charge is e and it is accelerated form r...

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  18. If the ionization energy of He^(+) is 19.6xx10^(-18) J per atom then t...

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  19. The energy of the second Bohr orbit in the hydrogen atom is -3.41eV. T...

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  20. The energy of an electron moving in n^(th) Bohr's orbit of an element ...

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