Home
Class 12
PHYSICS
Light of wavelength 3000 Å is incident...

Light of wavelength ` 3000 Å ` is incident on the metal surface , having work function 1 eV . Find the maximum velocity of emitted photo electron

Text Solution

Verified by Experts

The correct Answer is:
`v_"max"=1xx10^6` m/s

`E=phi+K_"max"`
Promotional Banner

Topper's Solved these Questions

  • DUAL NATURE OF RADIATION AND MATTER

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT SECTION A. Objective (Only one answer)|50 Videos
  • 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-D)|10 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

Light of wavelength 3000Å is incident on a metal surface whose work function is 1 eV. The maximum velocity of emitted photoelectron will be

Light of wavelength 4000Å is allowed to fall on a metal surface having work function 2 eV. The maximum velocity of the emitted electrons is (h=6.6xx10^(-34)Js)

Light of wavelength 2000Å is incident on a metal surface of work function 3.0 eV. Find the minimum and maximum kinetic energy of the photoelectrons.

A light of 4 eV incident on metal surface of work function phi eV . Another light of 2.5 eV incident on another metal surface of work function phi_2 eV . Find the ratio of maximum velocity of photo electrons (v_1/v_2) .

The photons from the Balmer series in Hydrogen spectrum having wavelength between 450 nm to 700 nm are incident on a metal surface of work function 2 eV Find the maximum kinetic energy of ejected electron (Given hc = 1242 eV nm)

Radiation of wavelength 310 nm is incidenton a metal surface of work function 1eV . Find maximum speed of photoelectrons emitted . ( Closed value )

Radiation of wavelength 310 nm is incidenton a metal surface of work function 1eV . Find maximum speed of photoelectrons emitted . ( Closed value )

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

Photons of energy 6 eV are incident on a metal surface whose work function is 4 eV . The minimum kinetic energy of the emitted photo - electrons will be

Light of wavelength 500 nm is incident on a metal with work function 2.28 eV . The de Broglie wavelength of the emitted electron is

AAKASH INSTITUTE ENGLISH-DUAL NATURE OF RADIATION AND MATTER -Try Yourself
  1. Find the retarding potential requred to stop the escape of photo elect...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  4. When a monochromatic point source of light is at a distance of 0.2 m...

    Text Solution

    |

  5. For intensity l of a light of waelength 5000 Å the photoelectron sa...

    Text Solution

    |

  6. What will be the ratio of de - Broglie wavelengths of proton and alpha...

    Text Solution

    |

  7. According to de - Broglie , the de - Broglie wavelength for electron i...

    Text Solution

    |

  8. The de - Broglie wavelength of a particle accelerated with 150 vo pote...

    Text Solution

    |

  9. The de Broglie wavelength of a thermal neutron at 927^circC is lamda. ...

    Text Solution

    |

  10. If the kinetic energy of a free electron doubles , its de - Broglie wa...

    Text Solution

    |

  11. In Davisson-Germer experiment, if the angle of diffraction is 52^(@), ...

    Text Solution

    |

  12. Find the reterding potential required to stop electron of the de-Brogl...

    Text Solution

    |

  13. Find the ratio of de Broglie wavelengths of an alpha -perticle and a d...

    Text Solution

    |

  14. Find the speed of an eletron having a wavelength of 10^(-10)m

    Text Solution

    |

  15. The following figure shows a graph for the stopping potential as a fun...

    Text Solution

    |

  16. What is the threshold wavelength for a cesium surface, for which the w...

    Text Solution

    |

  17. A beam contains infrared light of a single wavelength, 1000 nm, and mo...

    Text Solution

    |

  18. The mass of a photon in motion is given its frequency = x)

    Text Solution

    |

  19. An AIR station is broadcasting the waves of wavelength 300 meters. If ...

    Text Solution

    |

  20. Find the frequency of 1 MeV photon . Give wavelength of a 1 KeV pho...

    Text Solution

    |