Home
Class 12
PHYSICS
Find the retarding potential requred to ...

Find the retarding potential requred to stop the escape of photo electrons from the metal surface of work function 1.07 eV , which is irradiated with light of wavelength 332 mn

A

4.81 eV

B

3.74 eV

C

2.66 eV

D

1.07 eV

Text Solution

Verified by Experts

The correct Answer is:
3
Promotional Banner

Topper's Solved these Questions

  • DUAL NATURE OF RADIATION AND MATTER

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT SECTION B.Objective (Only one answer)|6 Videos

  • DUAL NATURE OF RADIATION AND MATTER

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT SECTION C. Objective (More than one answer)|4 Videos

  • DUAL NATURE OF RADIATION AND MATTER

    AAKASH INSTITUTE ENGLISH|Exercise Try Yourself|41 Videos

  • CURRENT ELECTRICITY

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT SECTION-J|10 Videos

  • ELECTRIC CHARGES AND FIELDS

    AAKASH INSTITUTE ENGLISH|Exercise comprehension|3 Videos

Similar Questions

Explore conceptually related problems

Find the retarding potential required to stop electron of the de Broglie wavelength 0.5 nm

Calculate the value of retarding potential in volt needed to stop the photoelectron ejected from a metal surface of work function 1.29 eV with light frequency of 5.5 xx 10^(14) sec^(-1) (nearly)

Five volt of stopping potential is needed for the photoelectrons emitted out of a surface of work function 2.2 eV by the radiation of wavelength

a. A stopping potential of 0.82V is required to stop the emission of photoelectrons from the surface of a metal by light of eavelength 4000 A . For light of wavelength 3000 A , the stopping potential is 1.85V . Find the value of Planck's constant. [1 electrons volt (eV) =1.6xx10^(-19)J] b. At stopping potential, if the wavelength of the incident light is kept fixed at 4000 A , but the intensity of light increases two times, will photoelectric current be botained ? Give reasons for your answer.

The stopping potential for the photoelectrons emitted from a metal surface of work function 1.7 eV is 10.4 V. Find the wavelength of the radiation used. Also, identify the energy levels in hydrogen atom, which will emit this wavelength.

What will be the minimum frequency of light source to get photocurrent, from a metal surface having work function 2 eV ?

In a photo-electric cell, a retarding potential of 0.5 V is required to block the movement of electrons from the cathode when monochromatic light of wavelength 400 nm is incident on its surface. Find the work function of the material of the cathode.

Light of wavelenght 5000 Å fall on a metal surface of work function 1.9 eV Find a. The energy of photon

If a surface has a work function 4.0 eV, what is the maximum velocity of electrons liberated from the surface when it is irradiated with ultraviolet radiation of wavelength 0.2 mum ?

Find the threshold wavelength of light that would produce photoelectrons for a silver surface . The work function for silver is 4.8 eV

AAKASH INSTITUTE ENGLISH-DUAL NATURE OF RADIATION AND MATTER -ASSIGNMENT SECTION A. Objective (Only one answer)
  1. Which of the following statements is not correct ?

    Text Solution

    |

  2. The energy of a photon of light is 3eV. Then the wavelength of photon ...

    Text Solution

    |

  3. Find the retarding potential requred to stop the escape of photo elect...

    Text Solution

    |

  4. The work function of a metal is 4.2 eV . Find the threshold wavelength...

    Text Solution

    |

  5. Light of wavelength 3000 Å is incident on the metal surface , having...

    Text Solution

    |

  6. Ultraviolet radiation of 6.2 eV falls on an aluminium surface (work -...

    Text Solution

    |

  7. The work function for tungsten and sodium are 4.5 eV and 2.3 eV, respe...

    Text Solution

    |

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

    Text Solution

    |

  9. A radio transmitter operation at a frequency 880 kHz and a power of 10...

    Text Solution

    |

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

    Text Solution

    |

  11. A photo-cell is illuminated by a source of light, which is placed at a...

    Text Solution

    |

  12. Stopping potential for photo electrons

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  19. Two identical photocathodes receive light of frequencies v(1) and v(2)...

    Text Solution

    |

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

    Text Solution

    |