Home
Class 11
CHEMISTRY
Threshold wavelength of a metal is 230 n...

Threshold wavelength of a metal is 230 nm. What will be the kinetic energy of photoelectrons ejected when the metal is irradiated with wavelength 180 nm? `(h = 6.626 xx 10^(-34)Jsec)`

Text Solution

AI Generated Solution

To find the kinetic energy of photoelectrons ejected when a metal is irradiated with a wavelength of 180 nm, we can use the photoelectric equation: \[ E = \frac{hc}{\lambda} - \phi \] Where: - \(E\) is the kinetic energy of the photoelectrons, ...
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

The photoelectric threshold wavelength of a metal is 300 nm. The maximum kinetic energy of electrons ejected from the metal surface by ultraviolet light of wavelength 250 nm is nearly (h = 4.14*10^-15 eV s and c= 3*10^8 ms^-1)

The threshold wavelength of a metal is 230 nm . The maximum K.E. of the electrons ejected from the metal surface by the radiation of wavelength 180 nanometer is

The threshold wavelength of a metal is 230 nm calculate the KE of the electrons from that metal surface by using UV radiation of wavelength 180 nm

The threshold wavelength of a metal is 400 nm photo electrons have kinetic energy maximum 1.5 eV. Find the wavelength of incident photon.

When a certain metal was irradiated with light of frequency 1.6xx10^(16)Hz , the photoelectrons emitted had twice the kinetic energy as photoelectrons emitted when the same metal was irradiated with light of frequency 1.0xx10^(6)Hz . Calculate the threshold frequency (v_(0)) for the metal.

When a certain metal was irradiated with a light of 8.1 xx 10^(16)Hz frequency, the photoelectron emitted had 1.5 times the kinetic energy as the photoelectrons emitted when the same metal was irradiated with light 5.8 xx 10^(16)Hz frequency. If the same metal is irradiated with light of 3.846nm wave length, what will be the energy of the photoelectron emitted?

NARAYNA-ATOMIC STRUCTURE-All Questions
  1. When light of 470 nm falls on the surface of potassium metal, electron...

    Text Solution

    |

  2. When a certain metal was irradiated with light of frequency 3.2 xx ...

    Text Solution

    |

  3. Threshold wavelength of a metal is 230 nm. What will be the kinetic en...

    Text Solution

    |

  4. what are the frequency and wavelength of a photon emitted during a tra...

    Text Solution

    |

  5. Calculate the shortest and longest wavelength in hydrogen spectrum of ...

    Text Solution

    |

  6. One of the lines in the emission spectrum of Li^(2 +) has the same wav...

    Text Solution

    |

  7. The number of spectral lines that are possible when electrons in 7th s...

    Text Solution

    |

  8. Calculate the wave number and wave length of H(alpha) line in Brackett...

    Text Solution

    |

  9. Calculate the radius of Bohr's 3rd orbit in Li^(+2) ion

    Text Solution

    |

  10. Calculate the velocity of an electron present in third orbit of H at...

    Text Solution

    |

  11. calculate the energy assoclated with the first orbit of He^(+) . What ...

    Text Solution

    |

  12. The ionisation energy of H atom is 13.6 eV. What will be the ionisa...

    Text Solution

    |

  13. what will be the wavelength of a ball of mass 0.1 kg moving with a vel...

    Text Solution

    |

  14. The mass of an electron is 9.1 xx 10^(-31)J, if its K.E. is 3.0 xx 10^...

    Text Solution

    |

  15. calculate the mass of a photon with wavelength 3.6 A

    Text Solution

    |

  16. Calculate de Broglie wavelength of an electron travelling at 1 % of th...

    Text Solution

    |

  17. Two particles A and B are in motion. If the wavelength associated with...

    Text Solution

    |

  18. An electron beam energes from an accelerator with kinetic energy 100eV...

    Text Solution

    |

  19. The kinetic energy of an electron is 4.55 xx 10^(-25)J. Calculate the ...

    Text Solution

    |

  20. A microscope using suitable photons is employed to an electron in an...

    Text Solution

    |