Home
Class 12
PHYSICS
What is the effect of decrease in freque...

What is the effect of decrease in frequency of incident radiation on the stopping potential in photoelectric emission?

Text Solution

Verified by Experts

The value of stopping potential in photo electirc emission from a metal surface decreases with the decrease in frequency of incident radiation, provided the frequency of radiation is greater than threshold frequency. When frequency of incident radiation becomes equal to threshold frequency, stopping potential becomes zero.
Promotional Banner

Topper's Solved these Questions

  • DUAL NATURE OF RADIATION AND MATTER

    PRADEEP|Exercise NCERT Exerciese question|1 Videos

  • DUAL NATURE OF RADIATION AND MATTER

    PRADEEP|Exercise Short answer|1 Videos

  • CURRENT ELECTRICITY

    PRADEEP|Exercise Problems for Practice (B)|2 Videos

  • ELECTROMAGNETIC INDUCTION & ALTERNATING CURRENT

    PRADEEP|Exercise Multiple Choice Questions|1 Videos

Similar Questions

Explore conceptually related problems

What, if any, is the effect of the (i) intensity (ii) frequency of incident radiation on the stopping potential in photoelectric emission?

Graph of incident freuency with stopping potential in photoelectric effect is

Sketch a graph between frequency of incident radiations and stopping potential for a given photosenstive material. What information can be obtained from the value of the intercept on the potential axis? A source of light of frequency greater than the threshold frequency is placed at a distance of 1m from the cathode of a photocell. The stopping potential is found to be V. If the distance of the light source from the cathode is reduced, explain giving reasons, what change will you observe in the (i) photoelectric current (i) stopping potential?

The photoelectric work function of the emitter of a photocell is 3.63 eV . The frequency of incident light radiation if the stopping potential of the emitter is 3 volt , is

The magnitude of stopping potential for the photoelectric effect is

The graph between frequency of incident radiations and stopping potential for a given photosensitive material as follows. What information can be obtained from the value of the intercept on the potential axis ?

Define the term 'stopping potential' in relation to photoelectric effect.

What is the effect of the intensity of incident radiation on the photoelectric current, for a given emitter material and p.d across the photoelectric cell ?

PRADEEP-DUAL NATURE OF RADIATION AND MATTER-Exercise
  1. What is the effect of decrease in frequency of incident radiation on t...

    Text Solution

    |

  2. The photoelectric effect can be explained on the basis of

    Text Solution

    |

  3. Which of the following has minimum stopping potential?

    Text Solution

    |

  4. When radiation is incident on a photoelectron emitter, the potential i...

    Text Solution

    |

  5. Two photons, each of energy 2.5 eV are simultaneously incident on the ...

    Text Solution

    |

  6. The maximum velocity of an electron emitted by light of wavelength lam...

    Text Solution

    |

  7. The photoelectric work function for a metal surface is 4.125 eV. The c...

    Text Solution

    |

  8. The slope of frequency of incident light and stopping potential for a ...

    Text Solution

    |

  9. Threshold wavelength for a metal having work function w(0) is lambda. ...

    Text Solution

    |

  10. The work function for metals A , B and C are respectively 1.92 eV , 2....

    Text Solution

    |

  11. The wavelength of the matter wave is independent of

    Text Solution

    |

  12. If E(1), E(2), E(3), E(4) are the respective kinetic energies of elect...

    Text Solution

    |

  13. What is de-Broglie wavelength assciated with electron moving under a ...

    Text Solution

    |

  14. The minimum energy required by an electron to..........form the metal ...

    Text Solution

    |

  15. The maximum kinetic energy of emitted photoelectrons depends on the......

    Text Solution

    |

  16. The ratio of number of photoelectrons ejected to the number of the pho...

    Text Solution

    |

  17. For given photosenstive material, the photoelectric current is...........

    Text Solution

    |

  18. An increase in the frequency of the incident light.............the vel...

    Text Solution

    |

  19. The minimum energy required to ejected an electron from the surface of...

    Text Solution

    |

  20. In photoelectric effect the energy of the free electron does not depen...

    Text Solution

    |

  21. Photon is not a..........but it is a.......... .

    Text Solution

    |