Home
Class 11
PHYSICS
When light of frequency v1 incident on a...

When light of frequency `v_1` incident on a metal with work function `W_0` (where `hv_1 gt W_0),` the photocurrent falls to zero at a stopping potential of `V_1.` If the frequency of light is increased to `v_2,` the stopping potential changes to `V_2.` Therefore, the charge of an electron is given by

A

`(W_0 (v_2 +v_1))/(v_1 V_2 +v_2V_1)`

B

`(W_0 (v_2 +v_1))/(v_1V_1 +v_2 V_2)`

C

`(W_0(v_2 -v_1))/(v_1 V_2-v_2 V_1)`

D

`(W_0 (v_2-v_1))/(v_2 V_2-v_1V_1)`

Text Solution

Verified by Experts

The correct Answer is:
C
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

Light of wavelength 2 xx 10^-7 m incident on the cathode of a photocell. The current in the photocell is reduced to zero by a stopping potential of 2V. Find the threshold avelength of a cathode.

The radiation of wavelength 332 nm is incident on a metal of work function 1.70 eV. The value of the stopping potential will be

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

Relation between the stopping potential V_0 of a metal and the maximum velocity of the photoelectrons is

The work function of caesium is 2.14 eV. Find the wavelength of the incident light if photocurrent is brought to zero by stopping potential of 0.60 V.

When the light source is kept 20 cm away from a photo cell, stopping potential 0.6 V is obtained. When source is kept 40 cm away, the stopping potential will be

TARGET PUBLICATION-ELECTRONS AND PHOTONS-Competitive Thinking
  1. Radiation of wavelength lambda in indent on a photocell . The fastest ...

    Text Solution

    |

  2. The photoelectric threshold wavelength of silver is 3250 xx 10^(-10) m...

    Text Solution

    |

  3. When light of frequency v1 incident on a metal with work function W0 (...

    Text Solution

    |

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

    Text Solution

    |

  5. The velocity of photon is proportional to (where v is frequency)

    Text Solution

    |

  6. Which of the following statements is not correct?

    Text Solution

    |

  7. If E and P are the energy and the momentum of a photon respectively,th...

    Text Solution

    |

  8. is the wavelength of photon of energy 35 ke V.

    Text Solution

    |

  9. The maximum wavelength of radiation that can produce photoelectric eff...

    Text Solution

    |

  10. The momentum of a photon is 3.3xx10^(-29)kg-m/s. Its frequency will b...

    Text Solution

    |

  11. A photon of wavelength 4400 Å is passing through vaccum. The effective...

    Text Solution

    |

  12. The momentum of a photon is 2 xx 10^(-16) gm - cm//sec. Its energy is

    Text Solution

    |

  13. If the energy of a photon corresponding to a wavelength of 6000 Å is ...

    Text Solution

    |

  14. If we express the energy of a photon in KeV and the wavelength in angs...

    Text Solution

    |

  15. A metal surface of work function 1.07 eV is irradiated with light of w...

    Text Solution

    |

  16. The work function of metal is 1 eV. Light of wavelength 3000 Å is inc...

    Text Solution

    |

  17. Energy from the sun is recived on earth at the rate of 2 cal per cm^(2...

    Text Solution

    |

  18. when a monochromatic point source of light is at a distance 0.2 m from...

    Text Solution

    |

  19. When a metal surface is illuminated by light wavelengths 400 nm and 25...

    Text Solution

    |

  20. The velocity of the most energetic electrons emitted from a metallic s...

    Text Solution

    |