Home
Class 12
PHYSICS
The stopping potential for the photoelec...

The stopping potential for the photoelectrons emitted from a metal surface of work function 1.7 eV is 10.4 V. Find the wavelength of the radiation used. Also, identify the energy levels in hydrogen atom, which will emit this wavelength.

A

The wavelength of light used is `1022 Å`.

B

The wavelength of light used is `970.6Å`.

C

The light used is emitted by hydrogen gas sample which de-excites from n=3 to n=1

D

The light used is emitted by hydrogen gas sample which de-excites from n=4 to n=1

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • PHOTOELECTRIC EFFECT AND MATTER WAVES

    PHYSICS GALAXY - ASHISH ARORA|Exercise Unsolved numerical problems|42 Videos

  • PHOTOELECTRIC EFFECT AND MATTER WAVES

    PHYSICS GALAXY - ASHISH ARORA|Exercise Numerical MCQs|60 Videos

  • NUCLEAR PHYSICS AND RADIOACTIVITY

    PHYSICS GALAXY - ASHISH ARORA|Exercise Concptual MCQs|48 Videos

  • THERMODYNAMICS LAWS & SPECIFIC HEATS OF GASES

    PHYSICS GALAXY - ASHISH ARORA|Exercise Practice Exercise 3.4|11 Videos

Similar Questions

Explore conceptually related problems

The stopping potential for the photo-electrons emitted from a metal surface of work-function 1.7 eV is 10.4 eV. Find the wavelength of the radiation used. Also identify the energy-levels in hydrogen atom which will emit this wavelength.

The stopping potential for the photoelectrons emitted from a metal surface of work function 1.7 eV is 10.4 eV. Identify the energy levels corresponding to the transitions in hydrogen atom which will result in emission of wavelength equal to that of incident radiation for the above photoelectric effect.

The stopping potential for the photo electrons emitted from a metal surface of work function 1.7 eV is 10.4 V. Identify the energy levels corresponding to the transitions in hydrogen atom which will result in emission of wavelength equal to that of incident radiation for the above photoelectric effect

Five volt of stopping potential is needed for the photoelectrons emitted out of a surface of work function 2.2 eV by the radiation of wavelength

A radiation is incident on a metal surface of work function 2.3 eV. The wavelength of incident radiation is 60 nm, then the number of photoelectrons is

The energy of emitted photoelectrons from a metal is 0.9ev , The work function of the metal is 2.2eV . Then the energy of the incident photon is

The stopping potential for photoelectrons emitted from a surface illuminated by light of wavelength 400 mm is 500 mV. When the incident wavelength is changed to a new value, the stopping potential is found to be 800 mV. New wavelength is about-

The stopping potential for electrons emitted from a photosensitive surface illuminated by light of wavelength 491 nm is 0.710 V. When the incident wavelength is changed to a new value, the stopping potential is 1.43 V. The new wavelength is :

The kinetic energy of the most energetic photoelectrons emitted from a metal surface is doubled when the wavelength of the incident radiation is reduced from lamda_1 " to " lamda_2 The work function of the metal is

PHYSICS GALAXY - ASHISH ARORA-PHOTOELECTRIC EFFECT AND MATTER WAVES-Advance MCQ
  1. In a photoelectric experiment, the collector plate is at 2.0V with res...

    Text Solution

    |

  2. The work function for aluminium surface is 4.2 eV and that for sodium ...

    Text Solution

    |

  3. The stopping potential for the photoelectrons emitted from a metal sur...

    Text Solution

    |

  4. H^(+), He^(+) and O^(++) all having the same kinetic energy pass thro...

    Text Solution

    |

  5. When an electron of hydrogen like atom jumps from a higher energy leve...

    Text Solution

    |

  6. Light rays are incident on an opaque sheet. Then they:

    Text Solution

    |

  7. The angular momentum of an electron in an orbit is quantized because:

    Text Solution

    |

  8. The intensity of light falling on a phototube is increased while keepi...

    Text Solution

    |

  9. Two photocathodes are illuminated by the light emitted by a single sou...

    Text Solution

    |

  10. Photoelectric effect supports quantum nature of light because (a) th...

    Text Solution

    |

  11. The momentum of a single photon of red light of fequency 400 xx 10^(12...

    Text Solution

    |

  12. When a monochromatic point source of light is at a distance of 0.2 m...

    Text Solution

    |

  13. In a photoelectric experiment, the collector plate is at 2.0 V with re...

    Text Solution

    |

  14. A small mirror of area A and mass m is suspended in a vertical plane b...

    Text Solution

    |

  15. When photons of energy 4.25 eV strike the surface of metal A, the ejec...

    Text Solution

    |

  16. In photoelectric effect, stopping potential depends on

    Text Solution

    |

  17. Thefigure shows the results of an experiment involving photoelectric e...

    Text Solution

    |

  18. the photoelectric effect can not be explained by the wave theory of li...

    Text Solution

    |

  19. A non-monochromatic light is used in an experiment on photoelectric ef...

    Text Solution

    |

  20. In a phtoelectron effect energy of photon is directly proportional to ...

    Text Solution

    |