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If radius of first orbit of hydrogen at...

If radius of first orbit of hydrogen atom is `5.29xx10^(-11)` m, the radius of fourth orbit will be

A

8.46 Å

B

10.23 Å

C

9.22 Å

D

9.48 Å

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The correct Answer is:
A
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MOTION-ATOMIC STRUCTURE & X-RAY -Exercise - 1
  1. The speed of an electron in the orbit of hydrogen atom in the ground s...

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  2. Difference between n^(th) and (n+1)^(th) Bohr's radius of H atom is eq...

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  3. If radius of first orbit of hydrogen atom is 5.29xx10^(-11) m, the ra...

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  4. The product of angular speed and tangential speed of electron in n^"th...

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  5. If in Bohr's atomic model, it is assumed that force between electron a...

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  6. In the Bohr model of a hydrogen atom, the centripetal force is furnish...

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  7. The ionization potential of the hydrogen atom is 13.6 V. The energy ne...

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  8. Ionisation potential of hydrogen atom is 13.6 eV. Hydrogen atom in gro...

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  9. The kinetic energy of electron in the first Bohr orbit of the hydrogen...

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  10. According to Bohr Model for Hydrogen, energy is proportional to :

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  11. In above question.radius is related as :-

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  12. If electron in a hydrogen atom has moves from n = 1 to n = 10 orbit, t...

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  13. The energy of a hydrogen atom in the ground state is -13.6 eV. The ene...

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  14. According to the Bohr theory of Hydrogen atom, the speed of the electr...

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  15. Out of the following which one is not a possible energy for a photon t...

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  16. The transition form the state n = 3 to n = 1 in a hydrogen-like atom r...

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  17. The electron of a hydrogen atom revolves the proton in a circuit nth o...

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  18. When a hydrogen atom is raised the ground state to third state

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  19. The ratio of the energies of the hydrogen atom in its first to second ...

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  20. Which of the transitions in hydrogen atom emits a photon of lowest fre...

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