Home
Class 12
PHYSICS
An electron , in a hydrogen-like atom, i...

An electron , in a hydrogen-like atom, is in excited state. It has a total energy of -3.4 eV. Calculate
(a) the kinetic energy and
(b) the de Broglie wavelength of the electron.

Text Solution

Verified by Experts

(a)`K=-E=-(-3.4)=3.4 eV`
(b) ` lambda_(d)=(h)/(sqrt(2mk))=(6.6xx10^(-34))/(sqrt(2xx9.1xx10^(-31)xx3.4xx1.6xx10^(-19)))`
`=0.66xx10^(-9) m=0.66 nm`
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

As electron in a hydrogen - like atom , is in an excited state it has a total energy of - 3.45 eV Calculate (i) the kinetyic energy and (ii) the de Brogle wavelength of the electron.

An electron in hydrogen like atom is in excited state 2t has a total energy of -3.4eV. Calculate (a) the kinetic energy (b) the de-Broglie wavelength of the electron. [Given h=6.63xx10^(-34)Js ]

An electron in a hydrogen like atom is in an excited state3 . It has a total energy of -3 4 eV. Calculate : (a) The kinetic energy of electron . (b) The de-Broglie wavelength of electron . ( h = 6.6 xx 10^(023) , m_e = 9 .108 xx 10^(-31) kg)

An electron in a hydrogen like atom is in an excited state. I thas a total energyof-3.4eV.Calculate: (i) The kinetic energy, (ii) The de-Broglie wavelength of the electron.

An electron of a hydrogen like atom is in excited, state. If total energy of the electron is -4.6 eV, then evaluate (i) the kinetic energy and (ii) the de-Brogli wavelength of the electron .

An electron, in a hydrogen like atom , is in excited state. It has a total energy of -3.4 eV, find the de-Broglie wavelength of the electron.

An electron is in excited state in a hydrogen-like atom. It has a total energy of -3.4eV .The kinetic energy of the electron is E and its de Broglie wavelength is lambda

CP SINGH-BOHR THEORY-Exercises
  1. An electron , in a hydrogen-like atom, is in excited state. It has a t...

    Text Solution

    |

  2. A beam of fast moving alpha particles were directed towards a thin fil...

    Text Solution

    |

  3. In a Rutherford scattering experiment when a projectile of change Z(1)...

    Text Solution

    |

  4. An alpha-particle of 5MeV energy strikes with a nucleus of uranium at ...

    Text Solution

    |

  5. An alpha nucleus of energy (1)/(2)m nu^(2) bombards a heavy nucleus o...

    Text Solution

    |

  6. In Rutherford scattering experiment, what will b ethe correct angle fo...

    Text Solution

    |

  7. Which of the following is correct regarding Bohr's theory for hydrogen...

    Text Solution

    |

  8. In the Bohr model of the atom (i) the radius of the n^(th) orbit is ...

    Text Solution

    |

  9. The minimum orbital angular momentum of the electron in a hydrogen ato...

    Text Solution

    |

  10. Which of the following parameters are the same for all hydrogen like a...

    Text Solution

    |

  11. As one considers orbits with higher value of n is a hydrogen atom, the...

    Text Solution

    |

  12. The enrgy of an atom (or ion) in the ground state is - 54.4 eV .If ma...

    Text Solution

    |

  13. The angular speed of the electron in the n^(th) Bohr orbit of the hydr...

    Text Solution

    |

  14. According to Bohr's theory, the ratio of the times taken by the electr...

    Text Solution

    |

  15. The ratio of the binding energies of the hydrogen atom in the first an...

    Text Solution

    |

  16. The radius of the shortest orbit in a one electron system is 18 pm it...

    Text Solution

    |

  17. Which of the following curve may represent the speed of the electron i...

    Text Solution

    |

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

    Text Solution

    |

  19. An orbit electron in the ground state of hydrogen has an angular momen...

    Text Solution

    |

  20. In Bohr's model of hydrogen atom, let PE represents potential energy a...

    Text Solution

    |

  21. The ratio of the speed of the electrons in the ground state of hydroge...

    Text Solution

    |