Home
Class 12
PHYSICS
Photons of 5.5 eV energy fall on the sur...

Photons of 5.5 eV energy fall on the surface of the metal emitting photoelectrons of maximum kinetic energy 4.0 eV. The stopping voltage required for these electrons is

A

5.5 V

B

1.5 V

C

9.5 V

D

4.0 V

Text Solution

Verified by Experts

The correct Answer is:
D
Stopping potential `= (K_(max))/(e) = (4.0 eV)/(e) = 4.0 V`
Promotional Banner

Topper's Solved these Questions

  • DUAL NATURE OF RADIATION AND MATTER

    FULL MARKS|Exercise ADDITIONAL QUESTIONS -(SHORT ANSWER QUESTIONS )|7 Videos

  • DUAL NATURE OF RADIATION AND MATTER

    FULL MARKS|Exercise ADDITIONAL QUESTIONS -( LONG ANSWER QUESTIONS )|7 Videos

  • DUAL NATURE OF RADIATION AND MATTER

    FULL MARKS|Exercise TEXTUAL EVALUATION SOLVED -( NUMERICAL PROBLEMS)|15 Videos

  • CURRENT ELECTRICITY

    FULL MARKS|Exercise Additional Questions Solved (Numerical Problems)|6 Videos

  • ELECTROSTATICS

    FULL MARKS|Exercise ADDITIONAL QUESTIONS SOLVED ( VII. NUMERICAL PROBLEMS )|5 Videos

Similar Questions

Explore conceptually related problems

What is the stopping potential of a photocell, in which electrons with a maximum kinetic energy of 6eV are emitted ?

The work function of caesium metal is 2.14 eV. When light of frequency 6xx10^(14)Hz is incident on the metal surface, photoemission of electrons occurs. What is the a. maximum kinetic energy of the emitted electrons, b. stopping potential, and c. maximum speed of the emitted photoelectrons ?

The stopping potential in an experiement on photoelectric effect is 2V. What is the maximum kinetic energy of the photoelectrons emitted ?

The maximum kinetic energy of a photoelectron is 3eV . What is its stopping potential ?

The stopping potential in an experiment on photoelectric effect is 1.5V. What is the maximum kinetic energy of the photoelectrons emitted ?

How does the maximum kinetic energy of electrons emitted vary with the work function of the metal?

What is the a. momentum, b. speed, and c. de Broglie wavelength of an electron with kinetic energy of 120 eV.

Two photons, each of energy 2.5eV are simultaneously incident on the metal surface. If the work function of the metal is 4.5eV then from the surface of the metal.

4 eV is the energy of the incident photon and the work function is 2 eV. The stopping potential will be

FULL MARKS-DUAL NATURE OF RADIATION AND MATTER-ADDITIONAL QUESTIONS -(MULTIPLE CHOICE QUESTIONS )
  1. The energy of photon of wavelength lambda is

    Text Solution

    |

  2. The ratio of the energy of a photon with lambda = 150 nm to that with ...

    Text Solution

    |

  3. Photons of 5.5 eV energy fall on the surface of the metal emitting pho...

    Text Solution

    |

  4. The wavelength of photon is proportional to (where upsilon = fequency)

    Text Solution

    |

  5. What is the energy of a photon whose wavelength is 6840 Å ?

    Text Solution

    |

  6. Momentum of photon of wavelength lambda is

    Text Solution

    |

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

    Text Solution

    |

  8. If a proton and electron have the same de-Broglie wavelength, then

    Text Solution

    |

  9. Photoelectric effect can be explained by

    Text Solution

    |

  10. Which of the following waves can produce photoelectric effect ?

    Text Solution

    |

  11. Which light when falls on a metal will emit photoelectons ?

    Text Solution

    |

  12. In photoelectric effect, the KE of electrons emitted from the metal su...

    Text Solution

    |

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

    Text Solution

    |

  14. Number of ejected photoelectrons increases with increases

    Text Solution

    |

  15. By photoelectric effect, Einstein proved

    Text Solution

    |

  16. A photocell employs photoelectric effect to convert

    Text Solution

    |

  17. When ultraviolet rays incident on metal plate there photoelectric effe...

    Text Solution

    |

  18. The threshold frequency for photoelectric effect on sodiune correspond...

    Text Solution

    |

  19. The photoelectric work function for a metal surface is 4.125 eV. The c...

    Text Solution

    |

  20. Ultraviolet radiations of 6.2 eV falls on an aluminium surface. Kineti...

    Text Solution

    |