Home
Class 12
PHYSICS
The ground state energy of hydrogen atom...

The ground state energy of hydrogen atom is - 13.6 eV. When its electron is in the first excited state, its excitation energy is.

A

6.8 eV

B

10.2eV

C

0

D

3.4 eV

Text Solution

Verified by Experts

The correct Answer is:
B
`E_(1) = - 13.66 eV`
In first excited state `E_(2) = (13.6)/((2)^(2)) = -3.4 eV`
`therefore ` Excitation energy ` = E_(2) = E_(1) = - 3.4 - (-13.6) eV = + 10.2 eV`
Promotional Banner

Topper's Solved these Questions

  • ATOMS

    U-LIKE SERIES|Exercise FILL IN THE BLANKS.|13 Videos

  • ATOMS

    U-LIKE SERIES|Exercise TRUE OR FALSE .|5 Videos

  • ATOMS

    U-LIKE SERIES|Exercise CASE BASED/SOURCE - BASED INTERGRATED QUESTIONS|10 Videos

  • ALTERNATING CURRENT

    U-LIKE SERIES|Exercise SELF ASSESSMENT TEST (SECTION -C)|2 Videos

  • CBSE EXAMINATION PAPER 2020

    U-LIKE SERIES|Exercise SECTION D|12 Videos

Similar Questions

Explore conceptually related problems

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

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

The ground state energy of hydrogen atom is -13.6 eV . What is the potential energy of the electron in this state

The ground state energy of hydrogen atom is -13.6eV . If the electron jumps to the ground state from the 3^("rd") excited state, the wavelength of the emitted photon is

The ground state energy of hydrogen atom is -13.6 eV. (i) What is the kinetic energy of an electron in the 2^(nd) excited state ? (ii) If the electron jumps to the ground state from the 2^(nd) excited state, calculate the wavelength of the spectral line emitted.

U-LIKE SERIES-ATOMS-MULTIPLE CHOICE QUESTIONS
  1. The radius of an electron orbit in a hydrogen atom is of the order of.

    Text Solution

    |

  2. In a Rutherford scattering experiment when a projectile of charge Z(1)...

    Text Solution

    |

  3. The ground state energy of hydrogen atom is - 13.6 eV. When its electr...

    Text Solution

    |

  4. Which of the following transitions in hydrogen atoms emit photons of h...

    Text Solution

    |

  5. In hydrogen atom which quantity is integral multiple of

    Text Solution

    |

  6. The energy of electron in first excited state of H-atom is - 3.4 eV. I...

    Text Solution

    |

  7. The diagram 12.03 shows the path of four a-particles of the same energ...

    Text Solution

    |

  8. Bohr's atom model presumes that.

    Text Solution

    |

  9. In the nth stable orbit of a hydrogen atom, the energy of an electron ...

    Text Solution

    |

  10. The Lyman series of hydrogen spectrum lies in which of the following r...

    Text Solution

    |

  11. Size of an atom is of the order of

    Text Solution

    |

  12. Hydrogen atoms in the ground state (E = - 13.6 eV) are excited by mono...

    Text Solution

    |

  13. The ratio of the energies of the hydrogen atom in its first excited st...

    Text Solution

    |

  14. Energy levels A, B and C of a certain atom correspond to increasing va...

    Text Solution

    |

  15. Consider an electron in the nth orbit of a hydrogen atom in the Bohr's...

    Text Solution

    |

  16. Ratio of the wavelengths of line of Lyman series and first line of Bal...

    Text Solution

    |

  17. In Rutherford's scattering experiment if impact parameter is zero then...

    Text Solution

    |

  18. As per Bohr atom model if the radius of the first orbit in an hydrogen...

    Text Solution

    |

  19. The concept of stationary (non-radiating) orbits was proposed by

    Text Solution

    |

  20. The first line of the Paschen series in hydrogen spectrum has a wavele...

    Text Solution

    |