Home
Class 12
PHYSICS
The work function of a metal is 3.4 eV. ...

The work function of a metal is 3.4 eV. If the frequency of incident radiation is increased to twice, then the work function of the metal becomes.

A

3.4 eV

B

7.2 eV

C

6.8 eV

D

1.7 eV

Text Solution

Verified by Experts

The correct Answer is:
A

The work function of a metal is an inherent property of the metal itself and it does not change with the frequency of the incident light.
Promotional Banner

Topper's Solved these Questions

  • AIIMS 2000

    AIIMS PREVIOUS YEAR PAPERS|Exercise PHYSICS|49 Videos
  • AIIMS 2002

    AIIMS PREVIOUS YEAR PAPERS|Exercise PHYSICS|60 Videos
AIIMS PREVIOUS YEAR PAPERS-AIIMS 2001-PHYSICS
  1. Mass of the proton is 1840 times that of electron. It is accelerated t...

    Text Solution

    |

  2. Two spheres of same metal have radii a and b . They have been connecte...

    Text Solution

    |

  3. The work function of a metal is 3.4 eV. If the frequency of incident r...

    Text Solution

    |

  4. If red light is replaced by white light then width of diffraction patt...

    Text Solution

    |

  5. Maximum energy transfer for an elastic collision will occur if one bod...

    Text Solution

    |

  6. Which of the following is path dependent

    Text Solution

    |

  7. If fundamental frequency is 50 and next successive frequencies are 150...

    Text Solution

    |

  8. If in a circuit lags behind EMF by pi//2 . Then it is a/an

    Text Solution

    |

  9. In Planck's oscillator energy is given as E=(hv)/(exp((hv)/(Kt)-1))...

    Text Solution

    |

  10. Temperature of the star is determined by

    Text Solution

    |

  11. If hot water is mixed with cold water

    Text Solution

    |

  12. For liquid to rise in a capillary tube , the angle of contact should b...

    Text Solution

    |

  13. Escape velocity of a rocket is 11.2 km/sec. It is released at an angle...

    Text Solution

    |

  14. X-ray beams are affected by

    Text Solution

    |

  15. The heat produced in a long wire is characterised by resistance , curr...

    Text Solution

    |

  16. If a unit positive charge is taken from one point to another over an e...

    Text Solution

    |

  17. Figure shows the electric lines of force emerging from a charged body....

    Text Solution

    |

  18. A charge is placed at the centre of cube of side a then flux linked wi...

    Text Solution

    |

  19. A small piece of metal wire is dragged across the gap between the pole...

    Text Solution

    |

  20. if the earth is treated as a sphere of radius Radn mass M, Its angular...

    Text Solution

    |