Home
Class 12
PHYSICS
The photoelectrons emitted from a given ...

The photoelectrons emitted from a given cathode on the incidence of a given monochromatic beam of liht ,have a /an

A

energy spread with a lower limit

B

energy spread with an upper limit

C

energy spread with o shrap limits

D

definite enregy only.

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • UNIT TEST -07

    MODERN PUBLICATION|Exercise EXERCISE|154 Videos

  • UNIT TEST -06

    MODERN PUBLICATION|Exercise EXERCISE|461 Videos

  • UNIT TEST-05

    MODERN PUBLICATION|Exercise EXERCISE|69 Videos

Similar Questions

Explore conceptually related problems

Do all photoelectrons emitted from a metal surface possess th esame energy?

Every mrtal has a definite work function. Why do all photoelectrons not come out with same energy, if incident radiation is monochromatic? Why is there an energy distribution of photoelectrons?

The question given below consist of an assertion (A) and a reason ( R). Use the following key to choose the appropriate answer to these questions from the codes (a), (b), ( c) and (d) given below: (a) Both A and R are true and R is the correct explanation of A. (b) Both A and R are true but R is NOT the correct explanation of A. (c) A is true but R is false. (d) A is false and R is also false. Assertion: Kinetic energy of photo electrons emitted by a photosensitive surface depends upon the intensity of incident photon. Reason: The ejection of electrons from metallic surface is possible with frequency of incident photon below the threshold frequency.

An electromagnetic wave of length lambda is incident on a photosensitive surface of negligible work function. If the photoelectrons emitted from the surface have the same de-Broglie wavelength lambda , prove that lambda=(2mc)/h lambda_1^2

MODERN PUBLICATION-UNIT TEST -07-EXERCISE
  1. In photoelecrtric effect ,the electrons are ejected from metals,if the...

    Text Solution

    |

  2. The stopping potential doubles,when the frequency of the incident ligh...

    Text Solution

    |

  3. The photoelectrons emitted from a given cathode on the incidence of a ...

    Text Solution

    |

  4. the speed of an electron having a wavelenth of 10^(-10) m is

    Text Solution

    |

  5. Which of following graphs correctly represents the variation of partic...

    Text Solution

    |

  6. Hard X-rays for the studdy of fractures in bones shjold have a minimum...

    Text Solution

    |

  7. We sidh to see inside an atom.Assuming the atom to have a diameter of ...

    Text Solution

    |

  8. Directions.In the following question, a statement of asertion followed...

    Text Solution

    |

  9. Directions.In the following question, a statement of asertion followed...

    Text Solution

    |

  10. Directions.In the following question, a statement of asertion followed...

    Text Solution

    |

  11. Directions.In the following question, a statement of asertion followed...

    Text Solution

    |

  12. Directions.In the following question, a statement of asertion followed...

    Text Solution

    |

  13. Directions.In the following question, a statement of asertion followed...

    Text Solution

    |

  14. Directions.In the following question, a statement of asertion followed...

    Text Solution

    |

  15. Directions.In the following question, a statement of asertion followed...

    Text Solution

    |

  16. Directions.In the following question, a statement of asertion followed...

    Text Solution

    |

  17. Directions.In the following question, a statement of asertion followed...

    Text Solution

    |

  18. Directions.In the following question, a statement of asertion followed...

    Text Solution

    |

  19. Directions.In the following question, a statement of asertion followed...

    Text Solution

    |

  20. Directions.In the following question, a statement of asertion followed...

    Text Solution

    |