Home
Class 11
PHYSICS
The photoelectric threshould wavelength ...

The photoelectric threshould wavelength for a metal surface is 6600 Å. The work function for this is

A

`1.4xx10^-19J`

B

`2xx10^-19J`

C

`3xx10^-19J`

D

`4xx10^-19J`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • ELECTRONS AND PHOTONS

    TARGET PUBLICATION|Exercise Competitive Thinking|80 Videos
  • ELECTRONS AND PHOTONS

    TARGET PUBLICATION|Exercise Evaluation Test|19 Videos
  • ELECTRONS AND PHOTONS

    TARGET PUBLICATION|Exercise Evaluation Test|19 Videos
  • COMMUNICATION SYSTEMS

    TARGET PUBLICATION|Exercise Evaluation Test|15 Videos
  • ELECTROSTATICS

    TARGET PUBLICATION|Exercise EXCERCISE|156 Videos

Similar Questions

Explore conceptually related problems

Work function of metal is

Thephotoelectric threshold wavelength of a certain metal is 3315 A.U. Its work function is....

The threshold wavelength of a metal is 1243 nm its work function will be

Threshold wavelength for a metal having work function w_(0) is lambda . Then the threshold wavelength for a metal having work function 2 w_(0) is

The photoelectric threshold wavelength of a metal is 230 nm. Determine the maximum kinetic energy in joule and eV of the ejected electron from metal surface when it is exposed to a radiation of wavelength 180 nm. (Planck's constant h = 6.63 xx 10^-34 J-S, C = 3 xx 10^8 m//sec .)

Photoelectric threshold wavelength of Tungsten is 2730overset@ A . Calculate its work function in electron volts. ( C = 3 xx 10^8 m//Sec., h = 6.63 xx 10^-34 Js )

Define threshold wavelength for photoelectric effect.

When a metal surface is illuminated by a monochromatic light of wave-length lambda , then the potential difference required to stop the ejection of electrons is 3V . When the same surface is illuminated by the light of wavelength 2lambda , then the potential difference required to stop the ejection of electrons is V . Then for photoelectric effect, the threshold wavelength for the metal surface will be

TARGET PUBLICATION-ELECTRONS AND PHOTONS-Critical thinking
  1. Light of frequency 1.5 times the threshold frequency is incident on a ...

    Text Solution

    |

  2. The threshold wavelength for lithium is 5250 Å. For photoemission to t...

    Text Solution

    |

  3. Photons of energy 6 eV are incident on a metal surface whose work func...

    Text Solution

    |

  4. In photoelectric emission, the velocity of electrons ejected from near...

    Text Solution

    |

  5. The stopping potential for photoelectrons ejected from a photosensitiv...

    Text Solution

    |

  6. What is the stopping potential when the metal with work function 0.6 e...

    Text Solution

    |

  7. The photoelectric threshould wavelength for a metal surface is 6600 Å....

    Text Solution

    |

  8. Assertion: Work function of a metal is 5 eV. The maximum wavelength o...

    Text Solution

    |

  9. Work function of a metal is 2 eV. The maximum wavelength of photons re...

    Text Solution

    |

  10. The work function of a photoelectric material is 3.3 eV. The thershold...

    Text Solution

    |

  11. The work function for a metal whose threshold wavelength is 5000 Å is

    Text Solution

    |

  12. A photon of energy 8 eV is incident on metal surface of threshold fre...

    Text Solution

    |

  13. The work function of a metal is 2.5 eV. Light of wavelength 3600 Å is ...

    Text Solution

    |

  14. Light of wavelength lambda strikes a photo - sensitive surface and ele...

    Text Solution

    |

  15. The maximum kinetic energy of emitted photoelectrons against frequency...

    Text Solution

    |

  16. If V1 and V2 are stopping potentials for incident photons of wavelengt...

    Text Solution

    |

  17. Ultraviolet radiation of 6.2 eV falls on an aluminium surface (work -...

    Text Solution

    |

  18. Two identical photo-cathodes receive light of frequencies v and v/2. I...

    Text Solution

    |

  19. The stopping potential (V0) versus frequency (v) plot of a substance i...

    Text Solution

    |

  20. Assertion: If the maximum kinetic energy of electrons emitted by a pho...

    Text Solution

    |