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If the electron in a hydrogen atom were ...

If the electron in a hydrogen atom were in the energy level with n 3, how much energy in joule would be required to ionise the atom ? ( Ionisation energy of H - atoms is `2.18 xx 10^(-18) J ` ) `:`

A

`6.54 xx10^(-19)`

B

` 1.43 xx 10^(-19)`

C

` 2.42 xx 10^(-19)`

D

` 3.14 xx 10^(-20)`

Text Solution

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The correct Answer is:
C
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MOTION-MODERN PHYSICS -1-EXERCISE-1
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  2. Consider the electron energy level diagram of H-atom Photons associate...

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  3. If the electron in a hydrogen atom were in the energy level with n 3,...

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  4. In a hydrogen atom, the electron is in n^(th) excited state. It may co...

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

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  6. The electron in a hydrogen atom makes a transition from M shell to L-s...

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  7. The electron in a hydrogen atom makes a transition n(1) rarr n(2) wher...

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  8. The radius of Bohr's first orbit is a(0) . The electron in n^(th) orbi...

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  9. The ionisation potential of H-atom is 13.6 eV. The energy required to ...

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  10. In a sample of hydrogen-like atom all of which are in ground state, a ...

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  11. A neutron collies head-on with a stationary hydrogen atom in ground st...

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  12. The electron in a hydrogen atom make a transition from an excited stat...

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  13. An H atom in ground state is moving with initial kinetic energy K .It ...

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  14. An electron collides with a hydrogen atom in its ground state and exci...

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  15. An electron with kinetic energy 5eV is incident on a hydrogen atom in ...

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  16. An electron of energy 11.2 eV undergoes an inelastic collision with a...

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  17. The recoil speed of hydrogen atom after it emits a photon in going fro...

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  18. The recoil speed of a hydrogen atom after it emits a photon is going...

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  19. A neutron moving with speed a makes a heat on collision with a hydroge...

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  20. A hydrogen atom is in 5^("in") excited state. When the electron jumps ...

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