Home
Class 11
PHYSICS
The electrons are emitted in the photoel...

The electrons are emitted in the photoelectricm effect from a metal surface

A

Only if the frequency of radiation is above a certain threshold value.

B

Only if the temperature of the surface is high.

C

at a rate that is independent of the nature of metal

D

with a maximum velocity proportional to the frequency of incident radiation.

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ELECTRONS AND PHOTONS

    TARGET PUBLICATION|Exercise Evaluation Test|19 Videos

  • ELECTRONS AND PHOTONS

    TARGET PUBLICATION|Exercise Critical thinking|22 Videos

  • COMMUNICATION SYSTEMS

    TARGET PUBLICATION|Exercise Evaluation Test|15 Videos

  • ELECTROSTATICS

    TARGET PUBLICATION|Exercise EXCERCISE|156 Videos

Similar Questions

Explore conceptually related problems

Photoelectrons emitted from a metallic surface are

Electrons are emittes with zero velocity from a metal surface when it is exposed to radiation of wavelength 6800A^@ . Calculate threshold frequency (nu_0) and a work function (W_0) of the metal.

The number of photo - electrons emitted per second from a metal surface increases when

The velocity of the most energetic electrons emitted from a metallic surface is doubled when the frequency nu of incident radiation is double. The work function of this metal is

In photoelectric emission, the velocity of electrons ejected from near the surface is

TARGET PUBLICATION-ELECTRONS AND PHOTONS-Competitive Thinking
  1. The electrons are emitted in the photoelectricm effect from a metal s...

    Text Solution

    |

  2. One moving electron when comes closer to other stationary electron, th...

    Text Solution

    |

  3. In photoelectric effect, stopping potential depends on

    Text Solution

    |

  4. The number of photo - electrons emitted per second from a metal surfac...

    Text Solution

    |

  5. The variation of photo-current with collector potential for different ...

    Text Solution

    |

  6. When the light source is kept 20 cm away from a photo cell, stopping p...

    Text Solution

    |

  7. As the intensity of incident light increases

    Text Solution

    |

  8. Threshold wavelength for lithium metal is 6250 Å. For photo emission, ...

    Text Solution

    |

  9. When yellow light is incident on a surface , no electrons are emitted ...

    Text Solution

    |

  10. The work function of metals is in the range of 2 eV to 5 eV. Find whic...

    Text Solution

    |

  11. In a photoelectric experiment, if both the intensity and frequency of ...

    Text Solution

    |

  12. An electron is accelerated through a potential difference of 1000 volt...

    Text Solution

    |

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

    Text Solution

    |

  14. In an X-ray tube , electrons bombarding the anode produce X-rays of wa...

    Text Solution

    |

  15. When potential difference of 9V is applied between the two plates, ele...

    Text Solution

    |

  16. From the following graph of photo current against collector plate pote...

    Text Solution

    |

  17. The maximum kinetic energy of photoelectrons emitted from a surface w...

    Text Solution

    |

  18. The maximum kinetic energy of the photoelectrons depends only on

    Text Solution

    |

  19. Einstein's photoelectric equation states that E(k) = h v - W . In this...

    Text Solution

    |

  20. The energy of gamma (gamma) ray photon is E(gamma) and that of an X-ra...

    Text Solution

    |