Home
Class 12
PHYSICS
The work function of metal is 1 eV. Lig...

The work function of metal is `1 eV`. Light of wavelength `3000 Å` is incident on this metal surface . The velocity of emitted photo - electrons will be

A

10 m/s

B

`1xx10^3` m/s

C

`1xx10^4` m/s

D

`1xx10^6` m/s

Text Solution

Verified by Experts

The correct Answer is:
4
Promotional Banner

Topper's Solved these Questions

  • DUAL NATURE OF RADIATION AND MATTER

    AAKASH INSTITUTE|Exercise ASSIGNMENT SECTION B.Objective (Only one answer)|6 Videos
  • DUAL NATURE OF RADIATION AND MATTER

    AAKASH INSTITUTE|Exercise ASSIGNMENT SECTION C. Objective (More than one answer)|4 Videos
  • DUAL NATURE OF RADIATION AND MATTER

    AAKASH INSTITUTE|Exercise Try Yourself|41 Videos
  • CURRENT ELECTRICITY

    AAKASH INSTITUTE|Exercise ASSIGNMENT SECTION-J|10 Videos
  • ELECTRIC CHARGES AND FIELDS

    AAKASH INSTITUTE|Exercise SECTION -J(Aakash Challengers Questions)|5 Videos

Similar Questions

Explore conceptually related problems

The work function of a metal is 2.5 eV. Light of wavelength 3600 Å is incident on this metal surface. The velocity of emitted photoelectrons will be

Light of wavelength 3000Å is incident on a metal surface whose work function is 1 eV. The maximum velocity of emitted photoelectron will be

Four elements A, B, C, D have work function 2, 2.4, 2.8, 3.2 eV. Light of wavelength 4000 Å is incident on them. The elements which emit photo electrons are

The work function of a metal is 3.4 eV. A light of wavelength 3000Å is incident on it. The maximum kinetic energy of the ejected electron will be :

The work function of a metal is 4 eV if 5000 Å wavelength of light is incident on the metal. Is there any photo electric effect ?

Light of waelength 4000Å is incident on a metal plate with work function 2eV. The max. K.E. of the photoelectrons is

Light of wavelength 500 nm is incident on a metal with work function 2.28 eV . The de Broglie wavelength of the emitted electron is

The work function of a mental is X eV when light of energy 2X eV is made to be incident on it then the maximum kinetic energy of emitted photo electron will be

AAKASH INSTITUTE-DUAL NATURE OF RADIATION AND MATTER -ASSIGNMENT SECTION A. Objective (Only one answer)
  1. A metal surface of work function 1.07 eV is irradiated with light of w...

    Text Solution

    |

  2. The work function of a metal is 4.2 eV , its threshold wavelength will...

    Text Solution

    |

  3. The work function of metal is 1 eV. Light of wavelength 3000 Å is inc...

    Text Solution

    |

  4. Ultraviolet light of 6.2 eV falls on an aluminium surface (work functi...

    Text Solution

    |

  5. The work function for tungsten and sodium are 4.5 eV and 2.3 eV respec...

    Text Solution

    |

  6. The work function of a metallic surface is 5.01 eV. The photo - electr...

    Text Solution

    |

  7. A radio transmitter operates at a frequency of 880 kHz and a power of ...

    Text Solution

    |

  8. The photo-electrons emitted from a surface of sodium metal are such th...

    Text Solution

    |

  9. A photo cell is receiving light from a source placed at a distance of ...

    Text Solution

    |

  10. Stopping potential for photo electrons

    Text Solution

    |

  11. The maximum wavelength of radiation that can produce photoelectric eff...

    Text Solution

    |

  12. Assuming photoemission to take place , the factor by which the maximum...

    Text Solution

    |

  13. The stopping potential V for photoelectric emission from a metal surfa...

    Text Solution

    |

  14. In an experiment on photoelectric effect the frequency f of the incide...

    Text Solution

    |

  15. If the work function of a metal is 'phi' and the frequency of the inci...

    Text Solution

    |

  16. The threshold frequency for a metallic surface correponds to an energy...

    Text Solution

    |

  17. Two identical photocathodes receive light of frequencies f1 and f2. If...

    Text Solution

    |

  18. Specific heat of water is 4.2 J//g.^(@)C. If light of frequency 3 xx 1...

    Text Solution

    |

  19. A red bulb and violet bulb of equal power emits n(R ) and n(v) number ...

    Text Solution

    |

  20. For a certain metal v is the five times of v(0) and the maximum veloci...

    Text Solution

    |