Home
Class 12
PHYSICS
A photocell stoops emission if it is mai...

A photocell stoops emission if it is maintained at `2 V` negative potential . The energy of most energetic photoelectron is

A

`2 eV`

B

`2 J`

C

`2 kJ`

D

`2 keV`

Text Solution

Verified by Experts

The correct Answer is:
A
`K_(max) = (|V_(0)|) eV = 2 eV`.
Promotional Banner

Topper's Solved these Questions

  • DUAL NATURE OF RADIATION AND MATTER

    A2Z|Exercise X-Rays|45 Videos

  • DUAL NATURE OF RADIATION AND MATTER

    A2Z|Exercise Problems Based On Mixed Concepts|42 Videos

  • DUAL NATURE OF RADIATION AND MATTER

    A2Z|Exercise Photo Momentum Energy|30 Videos

  • CURRENT ELECTRICITY

    A2Z|Exercise Section D - Chapter End Test|29 Videos

  • ELECTRIC CHARGE, FIELD & FLUX

    A2Z|Exercise Section D - Chapter End Test|29 Videos
A2Z-DUAL NATURE OF RADIATION AND MATTER-Photo Electric Effect
  1. When yellow light is incident on a surface , no electrons are emitted ...

    Text Solution

    |

  2. The photoelectric threshold of a certain metal is 3000A. If the radiat...

    Text Solution

    |

  3. A photocell stoops emission if it is maintained at 2 V negative potent...

    Text Solution

    |

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

    Text Solution

    |

  5. When a point source of light is at a distance of one metre from a phot...

    Text Solution

    |

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

    Text Solution

    |

  7. Light of wavelength lambda strikes a photo - sensitive surface and ele...

    Text Solution

    |

  8. Light of wavelength 5000 Å falls on a sensitive plate with photoelectr...

    Text Solution

    |

  9. If the work function of a photo - metal is 6.825 eV. Its threshold wav...

    Text Solution

    |

  10. Work function of a metal is 2.1 eV. Which of the waves of the followin...

    Text Solution

    |

  11. The frequency of incident light falling on a photosensitive metal plat...

    Text Solution

    |

  12. When light of wavelength 300 nm (nanometre) falls on a photoelectric e...

    Text Solution

    |

  13. Threshold wavelength for photoelectric effect on sodium is 5000 Å . It...

    Text Solution

    |

  14. What is the stopping potential when the metal with work function 0.6 e...

    Text Solution

    |

  15. The work functions for sodium and copper are 2 eV and 4 eV . Which of ...

    Text Solution

    |

  16. For intensity I of a light of wavelength 5000 Å the photoelectron satu...

    Text Solution

    |

  17. Light of frequency 8 xx 10^(15) Hz is incident on a substance of photo...

    Text Solution

    |

  18. The lowest frequency of light that will cause the emission of photoele...

    Text Solution

    |

  19. Lights of two different frequencies whose photons have energies 1 and ...

    Text Solution

    |

  20. Sodium and copper have work functions 2.3 eV and 4.5 eV respectively ....

    Text Solution

    |