Home
Class 12
PHYSICS
Three photons coming from excited atoms ...

Three photons coming from excited atoms hydrogen sample are picked up .There energies are `12.1eV, 10.2eV and 1.9eV` these photons must come from

A

a single atom

B

two atoms

C

three atom

D

either two atoms or three atoms

Text Solution

Verified by Experts

The correct Answer is:
D
`12.1=E(n=3)-E(n=1)`
`10.2=E(n=2)-E(n=1)`
`1.9=E(n=3)-E(n=2)`
At least two atoms must be enveloped as three cannot be two transition from same level from same atom.
Promotional Banner

Topper's Solved these Questions

  • ATOMIC PHYSICS

    RESONANCE|Exercise Exercise (2) Only one option correct type|30 Videos

  • ATOMIC PHYSICS

    RESONANCE|Exercise Exercise-2 part-II Single and double value integer type|12 Videos

  • ATOMIC PHYSICS

    RESONANCE|Exercise Exercise 1 Part-1 subjective questions|35 Videos

  • ALTERNATING CURRENT

    RESONANCE|Exercise HIGH LEVEL PROBLEMS|11 Videos

  • CAPACITANCE

    RESONANCE|Exercise High Level Problems|16 Videos

Similar Questions

Explore conceptually related problems

Three photons coming from excited atoms hydrogen sample are pickedup .There energies are 12.1eV, 10.2eV and 1.9eV these photons must come from

Three photons originating from excited atomic hydrogen atoms are found to have energies of 0.66 eV , 1.89 eV and 2.55 eV respectively . The minimum no. of atoms that must be present are :

Consider a hydrogen-like atom whose energy in nth excited state is given by E_(n) = -(13.6 Z^(2))/(n^(2)) When this excited makes a transition from excited state to ground state , most energetic photons have energy E_(max) = 52.224 eV . and least energetic photons have energy E_(max) = 1.224 eV Find the atomic number of atom and the intial state or excitation.

A hydrogen like atom (atomic number z ) is in a higher excited state of quantum number n . This excited atom can make a transition to the first excited state by successively emitting two photons of energies 10.2 eV and 17.0 eV respectively. Alternatively the atom from the same excited state can make a transition to the second excited state by successively emitting 2 photons of energy 4.25 eV and 5.95 eV respectively. Determine the value of (n+z)

A hydrogen like atom (atomic number Z) is uin a higher excleted atate of quantum n , The excited atom can make a two photon of energy 10.2 and 17.0 eV respactively , Alernately the atom from the same excited state by successively eniting two photons of energies 4.25 eV and 5.95 eV respectively Determine the value of n and Z (lonization energy of H- atom = 13.6 eV )

A hydrogen like species (atomic number Z) is present in a higher excited state of quantum number n. This excited atom can make a transitionn to the first excited state by successive emission of two photons of energies 10.20 eV and 17.0 eV respectively. Altetnatively, the atom from the same excited state can make a transition to the second excited state by successive of two photons of energy 4.25 eV and 5.95 eVv respectively. Determine the value of Z.

A photon collides with a stationary hydrogen atom in ground state inelastically. Energy of the colliding photon is 10.2 eV. After a time interval of the order of micro second another photon collides with same hydrogen atom inelastically with an energy of 15eV. What wil be observed by the detector? (a) 2 photons of energy 10.2 eV (b) 2 photons of energy 1.4 eV (c ) One photon of energy 10.2 eV and an electron of energy 1.4 eV (d) One photon of energy 10.2 eV and another photon of energy 1.4 eV

RESONANCE-ATOMIC PHYSICS-Exercise ( Part II : Only one one correct type)
  1. If a(0) is the Bohr radius, the radius of then n=2 electronic orbit in...

    Text Solution

    |

  2. Ionization energy of a hydrogen like A is greater than that of another...

    Text Solution

    |

  3. Which energy state of doubly ionized lithium Li^(++) has the same ener...

    Text Solution

    |

  4. In the Bohr model of a hydrogen atom, the centripetal force is furnish...

    Text Solution

    |

  5. If an orbital electron of the hydrogen atom jumps from the groud state...

    Text Solution

    |

  6. In the Bohr model of the hydrogen atom, the ratio of the kinetic energ...

    Text Solution

    |

  7. The innermost orbit of the hydrogen atom has a diameter of 1.06Å what ...

    Text Solution

    |

  8. Three photons coming from excited atoms hydrogen sample are picked up ...

    Text Solution

    |

  9. The transition from the state n = 4 to n = 3 in a hydrogen-like atom r...

    Text Solution

    |

  10. Ionization potential of hydrogen atom is 13.6 V. Hydrogen atoms in the...

    Text Solution

    |

  11. Energy levels A, B, C of a certain atom corresponding to increasing va...

    Text Solution

    |

  12. For the first member of Balmer series of hydrogen spectrum, the wavele...

    Text Solution

    |

  13. The frequency of the first line in Lyman series in the hydrogen spect...

    Text Solution

    |

  14. An electron with kinetic energy 10 eV is incident on a hydrogen atom i...

    Text Solution

    |

  15. Consider a photon of continuous X-ray coming from a Coolidge tube. Its...

    Text Solution

    |

  16. If the voltage across the filament is increased, the cutoff wavelength

    Text Solution

    |

  17. The characterstics X-ray spectrum is emitted due to transition of

    Text Solution

    |

  18. When ultraviolet light is incident on a photocell, its stopping potent...

    Text Solution

    |

  19. In Davosson-Germer experiment, the filament emits

    Text Solution

    |

  20. In the Davisson and Germer experiment , the velocity of electrons emit...

    Text Solution

    |