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Ground state energy of H-atom is -13.6 e...

Ground state energy of H-atom is -13.6 eV. The energy needed to ionise H-atom from its second excited state is

A

1.51 eV

B

3.4 eV

C

13.6 eV

D

12.1 eV

Text Solution

Verified by Experts

The correct Answer is:
A
second excited state corresponds to n=3
` :. e=( 13.6 )/( 3^2) eV = 1.5 l e V `
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DISHA PUBLICATION-ATOMS-EXERCISE-1: CONCEPT BUILDER (TOPICWISE)
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  2. The energy of electron in an excited hydrogen atom is -3.4eV. Its angu...

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  3. The largest wavelength in the ultraviolet region of the hydrogen spect...

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  4. Taking Rydberg's constant R(H) = 1.097 xx 10^(7)m first and second wav...

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  5. The ratio of areas within the elctron orbits for the first excited sta...

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  6. Consider an eelctron in the nth orbit of a hydrogen atom in the Bohr m...

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  7. In hydrogen spectrum the wavelength of H(a) line is 656nm, where in t...

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  8. The wavelength of K(alpha) –line characteristic X–rays emitted by an e...

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

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  10. Ground state energy of H-atom is -13.6 eV. The energy needed to ionise...

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  11. In a hydrogen atom the electron makes a transition from (n+1)^(th) lev...

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  12. An electron jumps from the 4th orbit to the 2nd orbit of hydrogen atom...

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  13. The average current due to an electron orbiting the proton in the n^(t...

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  14. The ratio of the longest to shortest wavelength in Brackett series of ...

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  15. The ionisation energy of hydrogen atom is 13.6 eV. Following Bohr's th...

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

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  17. Electron in hydrogen atom first jumps from third excited state to seco...

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  18. If lamda(1) and lamda(2) are the wavelengths of the first members of t...

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

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  20. The wavelength of the first line of Lyman series for hydrogen atom is ...

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