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

The work function for metals `A , B` and `C` are respectively `1.92 eV , 2.0 eV` and `5 eV`. According to Einstein's equation , the metals which will emit photoelectrons for a radiation of wavelength `4100 Å` are

A

None

B

A only

C

A and B only

D

All the three metals

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • PHOTOELECTRIC EFFECT

    MOTION|Exercise EXERCISE -3 (PREVIOUS YEAR PROBLEMS (JEE MAIN))|12 Videos
  • PHOTOELECTRIC EFFECT

    MOTION|Exercise EXERCISE-2 (OBJECTIVE QUESTIONS (NEET))|17 Videos
  • OPTICS

    MOTION|Exercise Exercise|45 Videos
  • PROJECTILE MOTION

    MOTION|Exercise EXERCISE-3 (SECTION-B)|8 Videos

Similar Questions

Explore conceptually related problems

The work functions for metals A, B and C are respectively 1.92 eV, 2.0 eV and 5 eV. According to Einstein's equation the metals which will emit photoelectrons for a radiation of wavelength 4100 Å is/are

The work function for metals X , Y and Z are respectively 1.92 eV , 2.0 eV and 5.0 eV . According to Einstein equation , the metal which will emit photoelectrons for a radiation of wavelength 4100 "Å" is/ are :

The work functions for metals A, B and ( C) are presepctively 1. 92 eV , 2, 0 eV 1 and 5.0 eV According to Einstein equation , the metal which will emit photoelectron for a radistion fo wavelingth 4100 Å /are

The work functions for three metals x,y and z are respectively 3ev,5ev and 7ev, then more reactive metal? "

Work functions of copper and cesium are 4.5 eV and 1.9 eV, respectively. What are the corresponding threshold frequencies for these metals ?

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

Work functions for metals A and B are 2 eV and 4 eV respectively. Which metal has a lower threshold wavelength and why ?

Light of wavelength 3500Å is incident on two metals A and B whose work functions are 3.2 eV and 1.9 eV respectively. Which metal will emit photoelectrons

MOTION-PHOTOELECTRIC EFFECT -EXERCISE - 3 SECTION -A (Previous Year Problems (NEET ))
  1. The work function for metals A , B and C are respectively 1.92 eV , 2....

    Text Solution

    |

  2. A photosensitive metallic surface has work function , h v(0). If photo...

    Text Solution

    |

  3. Momentum of a photon of wavelength lambda is

    Text Solution

    |

  4. The momentum of moving particle is p . The wavelength lambda of the as...

    Text Solution

    |

  5. A photo - cell employs photoelectric effect to convert

    Text Solution

    |

  6. When photons of energy hv fall on an aluminium plate (of work function...

    Text Solution

    |

  7. The momentum of a photon of energy 1 MeV "in" kg m//s will be

    Text Solution

    |

  8. In photoelectric effect, the electrons are ejected from metals if the ...

    Text Solution

    |

  9. A 5 W source emits monochromatic light of wavelength 5000 Å. When plac...

    Text Solution

    |

  10. Monochromatic light of frequency 6.0 xx 10^(14) Hz is produced by a la...

    Text Solution

    |

  11. The work function of a surface of a photosensitive material is 6.2 eV...

    Text Solution

    |

  12. The number of photoelectrons emitted for light of a frequency v (highe...

    Text Solution

    |

  13. Monochromatic light of wavelength 667 nm is produced by a helium neon ...

    Text Solution

    |

  14. The figure shows a plot of photo current versus anode potential for a ...

    Text Solution

    |

  15. A source S(1) is producing 10^(15) photons/s of wavelength 5000 Å Anot...

    Text Solution

    |

  16. The potential difference that must be applied to stop the fastest phot...

    Text Solution

    |

  17. The electron in the hydrogen atom jumps from excited state (n=3) to it...

    Text Solution

    |

  18. Photoelectric emission occurs only when the incident light has more th...

    Text Solution

    |

  19. The work functions for metals A, B and C are respectively 1.92 eV, 2....

    Text Solution

    |

  20. Monochromatic light of wavelength 667 nm is produced by a helium neon ...

    Text Solution

    |