Home
Class 12
PHYSICS
Hydrogen aton in a sample are excited to...

Hydrogen aton in a sample are excited to `n = 5` state and it is found that photons of all possible wavelength are present in the emission spectra. The min imum number of hydrogen atom in the sample would be

A

5

B

6

C

10

D

infinite

Text Solution

Verified by Experts

The correct Answer is:
B
The wavelength present in emission spectra are shown in figure

Transition `a, e, h and f` can be performed by a single atom also. This is also true about transition `b and i` , other transitions require one atom each.
Promotional Banner

Topper's Solved these Questions

  • ATOMIC PHYSICS

    CENGAGE PHYSICS|Exercise Multiple Correct|13 Videos

  • ATOMIC PHYSICS

    CENGAGE PHYSICS|Exercise Linked Comprehension|62 Videos

  • ATOMIC PHYSICS

    CENGAGE PHYSICS|Exercise Subject|17 Videos

  • ALTERNATING CURRENT

    CENGAGE PHYSICS|Exercise QUESTION BANK|65 Videos

  • ATOMS

    CENGAGE PHYSICS|Exercise QUESTION BANK|40 Videos

Similar Questions

Explore conceptually related problems

Find the wavelength of electron orbiting in the first excited state of hydrogen atom.

A hydrogen atom in an excited state emits a photon which has the longest wavelength of the Paschen series. Further emissions from the atom cannot inculde the

In a hydrogen sample atoms are excited to the state with principal quantum number n. The number of different possible wavelengths emitted is

A hydrogen atom in an excited state emits a photon which has the longest wavelength of the Paschen series . Further emissions from the atom cannot include the :

Hydrogen atom is excited from ground state to another state with principal quantum number equal to 5. Then the number of spectral lines in the emission spectra will be:

A hydrogen atom ia in excited state of principal quantum number n . It emits a photon of wavelength lambda when it returnesto the ground state. The value of n is

Hydrogen atom from excited state comes to the ground state by emitting a photon of wavelength lambda . If R is the Rydberg constant, then the principal quatum number n of the excited state is

Hydrogen atom is exited from ground state to another state with principal quantum number equal to 4 Then the number of spectral linear in the emission spectra will be

The electron in hydrogen atom in a sample is in n^(th) excited state, then the number of differrent spectrum lines obtained in its emission spectrum will be

A hydrogen atom is in the third excited state. It make a transition to a different state and a photon is either obsorbed or emitted. Determine the quantum number n of the final state and the energy energy of the photon If it is a emitted with the shortest possible wavelength. b emitted with the longest possible wavelength and c absorbed with the longest possible wavelength.

CENGAGE PHYSICS-ATOMIC PHYSICS-Single Correct
  1. The power of an X-ray tube is 16 W. If the potential difference applie...

    Text Solution

    |

  2. A hydrogen like atom (atomic number Z) is in a higher excited state o...

    Text Solution

    |

  3. Hydrogen aton in a sample are excited to n = 5 state and it is found t...

    Text Solution

    |

  4. A sample of hydrogen atom is in excited state (all the atoms ). The ph...

    Text Solution

    |

  5. Mark out the correct statement regarding X-rays.

    Text Solution

    |

  6. An electron collides with a hydrogen atom in its ground state and exci...

    Text Solution

    |

  7. Electron in a hydrogen-like atom (Z = 3) make transition from the fort...

    Text Solution

    |

  8. In which of the following transition will the wavelength be minimum ?

    Text Solution

    |

  9. An electron with kinetic energy 5eV is incident on a hydrogen atom in ...

    Text Solution

    |

  10. If the average life time of an excited state of hydrogen is of the ord...

    Text Solution

    |

  11. An electron of energy 11.2 eV undergoes an inelastic collision with a...

    Text Solution

    |

  12. The recoil speed of hydrogen atom after it emits a photon in going fro...

    Text Solution

    |

  13. A beam of 13.0 eV electrons is used to bombard gaseous hydrogen. The s...

    Text Solution

    |

  14. The wavelength of the spectral line that corresponds to a transition i...

    Text Solution

    |

  15. The angular momentum of an electron in hydrogen atom is 4 h// 2 pi. Ki...

    Text Solution

    |

  16. different between nth and (n + 1) th Bohr's radius of hydrogen atom is...

    Text Solution

    |

  17. k(a) wavelength emitted by an atom of atomic number Z= 11 is lambda f...

    Text Solution

    |

  18. A proton of mass m moving with a speed v(0) apporoches a stationary pr...

    Text Solution

    |

  19. If an X-ray tube operates at the voltage of 10kV, find the ratio of th...

    Text Solution

    |

  20. The potential different across the Coolidge tube is 20 kV and 10 m A c...

    Text Solution

    |