Home
Class 12
PHYSICS
The work functins for metals,A ,B and C ...

The work functins for metals,A ,B and C are 1.92 eV,2 eV and 5 eV repspectively.According to einstein's equation,the metals which will emit photoelectrons for a radiation of waveelngth `4,100 overset @A` is /are:

A

none

B

A only

C

A and B only

D

all the three

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • UNIT TEST -07

    MODERN PUBLICATION|Exercise EXERCISE|154 Videos

  • UNIT TEST -06

    MODERN PUBLICATION|Exercise EXERCISE|461 Videos

  • UNIT TEST-05

    MODERN PUBLICATION|Exercise EXERCISE|69 Videos
MODERN PUBLICATION-UNIT TEST -07-EXERCISE
  1. Monochromatic light of wavelength 667 nm is produced by a helium neon ...

    Text Solution

    |

  2. The photoelectric work function for a metal surface is 4.125 eV.The cu...

    Text Solution

    |

  3. The work functins for metals,A ,B and C are 1.92 eV,2 eV and 5 eV reps...

    Text Solution

    |

  4. When ultraviolet rays are incident on a metal plate,the photoelectric ...

    Text Solution

    |

  5. A photocell is illuminated by a small bright source placed 1 m away .w...

    Text Solution

    |

  6. A photoelectric cell is illuinated by a point source of light 1 m away...

    Text Solution

    |

  7. A 5 W source emits monochromatic light of wavelength 5,00 overset @A.W...

    Text Solution

    |

  8. As the intensity of incident light incrases:

    Text Solution

    |

  9. Which of the following statements is correct?

    Text Solution

    |

  10. The number of photoelectrons emited for a light of a freqeuency v (hig...

    Text Solution

    |

  11. When monochromatic radition of intensity I falls on a metal surface,th...

    Text Solution

    |

  12. The cathode of a photoelectric cell is hanged,such that the work func...

    Text Solution

    |

  13. Einstien's work on photoelectric effect given support to:

    Text Solution

    |

  14. When photons of energy h v fall on an aluminium plate (of work functio...

    Text Solution

    |

  15. The work function of a surface of a phototsensitve materil is 6.2 eV.T...

    Text Solution

    |

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

    Text Solution

    |

  17. Photoelectric work function of a metal is 1 eV.Light of wavelength l...

    Text Solution

    |

  18. The figure shows a plot of photocurrent versus anode potential for a p...

    Text Solution

    |

  19. According to Einstein's photoelectric equation, the graph between kine...

    Text Solution

    |

  20. According to Einstein's photoelectric equation, the graph between kine...

    Text Solution

    |