Home
Class 12
PHYSICS
The work function for a certain metal is...

The work function for a certain metal is 4.2 eV.Will this metal give photoelectric emission for incident radiation of waveleength 330 nm?Given that charge on elecron, `e = 1.6 xx 10^(-19) C`,velocity of light ,`c= 3 xx 10 ^8 m s ^(-1)` and Planck's constnat ,`h = 6.62 xx 10^(-34) J s`.

Promotional Banner

Topper's Solved these Questions

  • Particle Nature of Radiation

    MODERN PUBLICATION|Exercise EXERCISE|94 Videos
  • Optical Instruments

    MODERN PUBLICATION|Exercise EXERCISE|100 Videos
  • Polarisation of Light

    MODERN PUBLICATION|Exercise EXERCISE|50 Videos

Similar Questions

Explore conceptually related problems

The work function for a certain metal is 4.2 eV. Will this metal give photoelectric emission for incident radiation of wavelenght 330 nm?

The work function of a certain metal is 4.2 eV. Will this metal give photoelectric emission for incident radiation of wavelength 330 nm?

Obtain de-Broglie waveelngth of an electon of kinetic energy 150 eV.Given mass of electron, m=9.1 xx 10^(-31) kg ,charge on electron, e=1.6 xx 10^(-19) C and Planck's constant , h=6.62 xx 10^(-34) J s .

Work function of Na is 2.75 eV. DOes sodium show photoelectric emission for light of wavelength 6800 overset@A ? (given h =6.62 xx 10^(-34) JS)

Calculate the de-Bronglie waveelngth for electron and protonif their speed is 10^5 m s^(-1) .Given,mass of an electron =9.1 xx 10^(-31) kg ,mass of proton = 1.67 xx 10^(-27) kg and Planck's constant = 6.62 xx 10^(-34) J s .

MODERN PUBLICATION-Particle Nature of Radiation-EXERCISE
  1. Calculate the threshold wavelength of photons, which can emit photoele...

    Text Solution

    |

  2. Work function of a photosensitive metla is 1,875 e V.Calculate the wav...

    Text Solution

    |

  3. The work function for a certain metal is 4.2 eV.Will this metal give p...

    Text Solution

    |

  4. The work function of sodium is 2.3 eV .Calculate the maxi cuase phtotl...

    Text Solution

    |

  5. A emtal has threshold waveelngth of 6,000 overset @A.Calculate thresh...

    Text Solution

    |

  6. A emtal has threshold waveelngth of 6,000 overset @A.Calculate the wo...

    Text Solution

    |

  7. Calculate the work function of a metal in eV,if its threshold waveelng...

    Text Solution

    |

  8. A metal sheet is given a negative charge of 11.2 n C. How many hotons...

    Text Solution

    |

  9. What is the minimum amount of energy that must be absorbed by metal to...

    Text Solution

    |

  10. Light of waveelength 5,000 overset @A falls on a metal surface of work...

    Text Solution

    |

  11. Light of wavleength 5,000 overset @A falls on a photo sensitive plate ...

    Text Solution

    |

  12. What is the enrergy of emitted photoelectrons,if light of frequency 10...

    Text Solution

    |

  13. The threshold wavelength of photosensitive metal is 5,000 overset @A ....

    Text Solution

    |

  14. A sheet of silver is illuminated by monochromatic ultraviolet radiatio...

    Text Solution

    |

  15. The energy of photoelectrons emtted from a photo-snsitive plate is 1.5...

    Text Solution

    |

  16. Light of wavelength 5,500 overset @A falls on a sensitive plate with w...

    Text Solution

    |

  17. Light of wavelength 5,500 overset @A falls on a sensitive plate with w...

    Text Solution

    |

  18. Light of wavelength 5,500 overset @A falls on a sensitive plate with w...

    Text Solution

    |

  19. Light of wavelength 5,000 overset @A falls on a sensitive plate with p...

    Text Solution

    |

  20. Light of wavelength 5,000 overset @A falls on a sensitive plate with p...

    Text Solution

    |