Home
Class 11
CHEMISTRY
Calculate the threshold frequency of met...

Calculate the threshold frequency of metal if the binding energy is 180.69KJ `mol ^(-1)` of electron .

Text Solution

Verified by Experts

`DeltaE("in"(eV)/"atom")=(1.80.69xx10^(3))/(6.02xx10^(23)1.6xx10^(-19))=`hv
`v=4.5xx10^(14) S^(-1)`
Promotional Banner

Topper's Solved these Questions

  • ATOMIC STRUCTURE

    BANSAL|Exercise Exercise|12 Videos

  • ATOMIC STRUCTURE

    BANSAL|Exercise Exercise.1|48 Videos

  • ATOMIC STRUCTURE

    BANSAL|Exercise Exercise.3|35 Videos

  • GENERAL ORGANIC CHEMISTRY

    BANSAL|Exercise Exercise 3|9 Videos

Similar Questions

Explore conceptually related problems

Calculate the threshold frequency of metal if the binding energy is 180.69 kJ mol^(-1) of electron.

Calculate the threshold frequency of photon for photoelectric emission from a metal of work function 0.1 eV.

A photon of frequency v is incident on a metal surface whose threshold frequency is v_(0) . The kinetic energy of the emitted photoelectrons will be

Light of frequency 4 v_(0) is incident on the metal of the threshold frequency v_(0) . The maximum kinetic energy of the emitted photoelectrons is

Thershold frequency, v_(0) is the minimum frequency which a photon must possess to eject an electron from a metal. It is different for different metals. When a photon of frequency 1.0xx10^(15)s^(-1) was allowed to hit a metal surface, an electron having 1.988x10^(-19)J of kinetic energy was emitted. Calculated the threshold frequency of this metal. equal to 600nm hits the metal surface.

The photoelectric threshold frequency of a metal is v. When light of frequency 4v is incident on the metal . The maximum kinetic energy of the emitted photoelectrons is

Light of frequency v is incident on a substance of threshold frequency v(v lt v) . The energy of the emitted photo-electron will be

BANSAL-ATOMIC STRUCTURE-Solved Examples
  1. Electromagnetic radiation of wavelength 242 nm is just sufficient t...

    Text Solution

    |

  2. What transition in the hydrogen spectrum would have the same wavelen...

    Text Solution

    |

  3. Calculate the longest wavelength which can remove the electron from I...

    Text Solution

    |

  4. Show that the wavelength of a 150 g rubber ball moving wiith a veloci...

    Text Solution

    |

  5. An element undergoes s reaction as show - X+2e^(-)rarrX^(2-), energy ...

    Text Solution

    |

  6. light of frequrency 7.5xx10^(14) Hz is incident on a metal surface . A...

    Text Solution

    |

  7. How many electron in a given atom can have the following quantum numbe...

    Text Solution

    |

  8. What designation will you assign to an to an orbital having following ...

    Text Solution

    |

  9. Which of the following set of quantum numbers are not permited (a) n...

    Text Solution

    |

  10. (a) for any mutielectron specie, compare the energies of following or...

    Text Solution

    |

  11. Calculate energy of electron which is moving in the orbit that has its...

    Text Solution

    |

  12. Wavelenght of the Blamer Halpha line is 6565Å. Calculate the wavelengh...

    Text Solution

    |

  13. The electron energy in hydrogen atom is given by E(n) =(-21.7xx10^(12)...

    Text Solution

    |

  14. Calculate the threshold frequency of metal if the binding energy is 1...

    Text Solution

    |

  15. U.V. light of wavelenght 800Å & 700Å falls on hydrongen atoms in thir ...

    Text Solution

    |

  16. Though what potential difference must an electron pass to have a wavel...

    Text Solution

    |

  17. Calculate magnitude of orbital angular momental of an e^(-) that occup...

    Text Solution

    |