Home
Class 12
PHYSICS
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

3.02 eV

B

1.51 eV

C

13.6eV

D

10 eV

Text Solution

Verified by Experts

The correct Answer is:
B
For second excited state n=3
For ionisation `n=oo`
`therefore E=E_(oo) - E_3 =0 - ( -(13.6)/(3^2)) =+ 1.51 eV`
Promotional Banner

Topper's Solved these Questions

  • ATOMS, MOLECULES AND NUCLEI

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP|30 Videos

  • CIRCULAR MOTION

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP-20|1 Videos

Similar Questions

Explore conceptually related problems

The energy of the electron in the ground state of H-atom is -13.6 eV . The energy of the first excited state will be

The ground state energy of hydrogen atom is -13.6 eV . The energy of second excited state of He^(+) ion in eV is

An electron is at ground state of the H atom. The minimum energy required to excite the H atom into the second excited state is

The total energy of eletcron in the ground state of hydrogen atom is -13.6 eV . The kinetic enegry of an electron in the first excited state is

Energy of the lowest level of H-atom is -13.6 eV. The energy of the emitted photons in transition from fourth to second energy state is

Energy of H-atom in the ground state is -13.6eV . Hence energy in the second excited state is

The ionisation potential of H-atom is 13.6 eV. The energy required to remove an electron from the second orbit of hydrogen is

The groud state energy of hydrogen atom is -13.6 eV . When its electron is in first excited state, its exciation energy is

MARVEL PUBLICATION-ATOMS, MOLECULES AND NUCLEI -TEST YOUR GRASP
  1. Ground state energy of H-atom is -13.6 eV. The energy needed to ionise...

    Text Solution

    |

  2. According to Rutherford's atom model, the electrons revolving round th...

    Text Solution

    |

  3. The velocity of an electron in the first Bohr orbit of hydrogen atom i...

    Text Solution

    |

  4. The radius of the orbital of electron in the hydrogen atom 0.5 Å. The ...

    Text Solution

    |

  5. The radius of hydrogen atom in its ground state is 5.3 xx 10^-11 m. Af...

    Text Solution

    |

  6. In hydrogen atom, if the difference in the energy of the electron in n...

    Text Solution

    |

  7. The series limit of Balmer series is 6400 Å. The series limit of Pasch...

    Text Solution

    |

  8. An electron jumps from the 3rd orbit to the ground orbit in the hydrog...

    Text Solution

    |

  9. If the following atoms and molecylates for the transition from n = 2 t...

    Text Solution

    |

  10. The diagram shows the energy levels for an electron in a certain atom....

    Text Solution

    |

  11. The de-Broglie wavelength of a particle having a momentum of 2xx10^(-2...

    Text Solution

    |

  12. What will be the ratio of de - Broglie wavelengths of proton and alpha...

    Text Solution

    |

  13. de-Broglie wavelength associated with an electron accelerated through ...

    Text Solution

    |

  14. An electtron and a photon have same wavelength . If p is the moment of...

    Text Solution

    |

  15. An X ray tube is operated at an accelerating potential of 40 kV. What ...

    Text Solution

    |

  16. A The wavelength of the Kalpha line ofthe characteristic X rays emitt...

    Text Solution

    |

  17. In the following reaction. .12 Mg^24 + .2He^4 rarr .14 S i^X +.0 n^1...

    Text Solution

    |

  18. The radius of germanium (Ge) nuclide is measured to be twice the radiu...

    Text Solution

    |

  19. The binding energy per nucleon is maximum in the case of.

    Text Solution

    |

  20. The binding energy per nucleon of O^16 is 7.97 MeV and that of O^17 is...

    Text Solution

    |

  21. In any fission the ratio ("mass of fission produts")/("mass of paren...

    Text Solution

    |