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In which of the following systems will t...

In which of the following systems will the radius of the first orbit (n= I) be minimum ?

A

Doubly ionized lithium

B

Singly ionized helium

C

Deuterium atom

D

Hydrogen atom

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The correct Answer is:
A
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AAKASH SERIES-ATOMS-EXERCISE -IA
  1. When a hydrogen atom is raised from the ground state to fifth stale(ex...

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  2. Consider a spectral line resulting from the transition n = 5 to n = 1,...

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  3. In which of the following systems will the radius of the first orbit (...

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  4. If the radius of an orbit is r and the velocity of electron in it is v...

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  5. As the quantum number increases, the difference of energy between cons...

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  6. In which of the following transitions will the wavelength be minimum ?

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  7. Which of the following parameters are the same for all hydrogen-like a...

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  8. The angular momentum of an electron in a hydrogen atom is proportion t...

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  9. The electron in a hydrogen atom makes a transition from an excited sta...

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  10. In a hydrogen atom the radius of n^(th) Bohr orbit is 'r(n)'. The grap...

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  11. The number of spectral lines in hydrogen atom are

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  12. An electron in the ground state of hydrogen atom is revolving in anti ...

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  13. When electron falls from a higher energy to a lower energy level the d...

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  14. The de-Brogilc wavelength of an electron in the first Bohr orbit is

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  15. Bohr's basic idea of discrete energy levels in atorns and the of Photo...

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  16. From quantization of angular momentum, one gets for hydrogen atom. the...

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  17. The excitation energy of Lyman last line is

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  18. The series corresponding to minimum wave- length transition in H-atom

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  19. The minmum magnetic dipole moment of electron in hydrogen atom is

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  20. Total energy of the electron in hydrogen atom above 0eV leads to

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