Home
Class 12
PHYSICS
Assertion : In the process of photoelect...

Assertion : In the process of photoelectric emission , all the emitted photoelectrons have the same kinetic energy.
Reason : The photon transfers its whole energy to the electron of the atom in photoelectric effect.

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false.

D

If the assertion and reason both are false.

Text Solution

Verified by Experts

Only the photoelectrons emitted from the surface of the metal have maximum kinetic energy. Those emitted from inside the metal loses part of their energy in collision with the other atoms inside the metal.
Promotional Banner

Topper's Solved these Questions

  • ELECTRON, PHOTON, PHOTOELECTRIC EFFECT & X -RAY

    ERRORLESS|Exercise PAST YEARS QUESTIONS|71 Videos

  • ELECTROMAGNETIC INDUCTION

    ERRORLESS|Exercise ASSERTION & REASON|20 Videos

  • ELECTRONICS

    ERRORLESS|Exercise Assertion & Reason|26 Videos

Similar Questions

Explore conceptually related problems

Kinetic energy of electrons emitted in photoelectric effect is

In photoelectric emission, the energy of the emitted electron is

The kinetic energy of the ejected electrons in photoelectric effect is

Do all electrons emitted in the photoelectric effect have the same kinetic energy?

ERRORLESS-ELECTRON, PHOTON, PHOTOELECTRIC EFFECT & X -RAY-ASSERTION & REASON
  1. Assertion : The specific charge of positive rays is not constant. Re...

    Text Solution

    |

  2. Assertion : Photosensitivity of a metal is high if its work function i...

    Text Solution

    |

  3. Assertion : The de - Broglie wavelength of a molecule varies inversely...

    Text Solution

    |

  4. Assertion : An electron is not deflected on passing through certain re...

    Text Solution

    |

  5. Assertion : Electric conduction in gases is possible at normal pressur...

    Text Solution

    |

  6. Assertion : Light is produced in gases in the process of electric disc...

    Text Solution

    |

  7. Assertion : The photoelectrons produced by a monochromatic light beam ...

    Text Solution

    |

  8. Assertion : An electric field is preferred in comparison to magnetic f...

    Text Solution

    |

  9. Assertion : The specific charge for positive rays is a characteristic ...

    Text Solution

    |

  10. Assertion : In Millikan's experiment for the determination of charge o...

    Text Solution

    |

  11. Assertion : In the process of photoelectric emission , all the emitted...

    Text Solution

    |

  12. Assertion : In photoelctric effect , on increasing the intensity of li...

    Text Solution

    |

  13. Assertion : Standard optical diffraction gratings cannot be used for ...

    Text Solution

    |

  14. Assertion : The threshold frequency of photoelectric effect supports t...

    Text Solution

    |

  15. Assertion : In photoemissive cell inert gas is used. Reason : Inert ...

    Text Solution

    |

  16. Assertion : X - rays cannot be diffracted by means of grating . Reas...

    Text Solution

    |

  17. Assertion : X - rays can penetrate through the flesh but not through t...

    Text Solution

    |

  18. Assertion : Intensity of X - rays can be controlled by adjusting the f...

    Text Solution

    |

  19. Assertion : Soft and hard X-rays differ in frequency as well as veloci...

    Text Solution

    |

  20. Assertion : Penetrating power of X-rays increases with the increasing ...

    Text Solution

    |