Home
Class 12
PHYSICS
The work function of a metal is 2.31 eV....

The work function of a metal is 2.31 eV. Photoelectric emission occurs when light of frequency `6.4 xx 10^(14)` Hz is incident on the metal surface. Calculate the energy of the incident radiation .

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • QUESTION PAPER 2022 SET - 5

    XII BOARDS PREVIOUS YEAR|Exercise SECTION-C (CASE STUDY)|5 Videos
  • QUESTION PAPER 2022 SET - 5

    XII BOARDS PREVIOUS YEAR|Exercise SECTION-C (CASE STUDY)|5 Videos
  • QUESTION PAPER 2022 SET - 4

    XII BOARDS PREVIOUS YEAR|Exercise SECTION-C|5 Videos
  • QUESTION PAPER 2022 TERM 1 SET 1

    XII BOARDS PREVIOUS YEAR|Exercise SECTION-C|6 Videos

Similar Questions

Explore conceptually related problems

A photon of frequency 5 xx 10^(14)Hz is incident on the surface of a metal. What is the energy of the incident photon in eV?

The work function of caesium is 2.14 eV. When light of frequency 6xx10^(14)Hz is incident on the metal surface, photoemission of electrons occurs. What is the (a) maximum kinetic energy of the emitted electrons. (b) stopping potential and (c) maximum speed of the emitted photoelectrons. given , h=6.63xx10^(-34)Js, 1eV=1.6xx10^(-19)J, c=3xx10^(8)m//s .

The given graph shows the variation of KE with frequency of incident radiations for two surfaces A and B. (a) Which of the metals has greater work function ? For which of the metals will stopping potential be more for the same frequency of incident radiation ? (b) The work function caesium metal is 2.14 eV. When light of frequency 6xx10^(14) Hz. incident on the metal surface , what is the maximum KE of the photoelectrons and stopping potential ?

The threshold frequency for a certain metal for photoelectric effect is 1.7x10^(15)Hz . When light of frequency 2.2xx10^(15)Hz is incident on the metal surface, the kinetic energy of the emitted photoelectrons is 3.3xx10^(-19)J . What is the value of the Planck's constant ?

Work function of potassium metal is 2.30 eV . When light of frequency 8xx 10^(14) Hz is incident on the metal surface, photoemission of electrons occurs. The stopping potential of the electrons will be equal to

Work function for caesium metal is 2.14 eV. Let a beam of light of frequency 6xx10^(14)Hz incident over the metal surface. Now, match the following columns and choose the correct option from code given.

XII BOARDS PREVIOUS YEAR-QUESTION PAPER 2022 SET - 5-SECTION-B
  1. Write the conditions for total internal reflection.

    Text Solution

    |

  2. Two prisms ABC and DBC are arranged as shown in figure . The cr...

    Text Solution

    |

  3. An object is placed in front of a converging lens. Obtain the conditio...

    Text Solution

    |

  4. A point object is placed at O in formt of a glass sphere as show in f...

    Text Solution

    |

  5. The work function of a metal is 2.31 eV. Photoelectric emission occurs...

    Text Solution

    |

  6. The work function of a metal is 2.31 eV. Photoelectric emission occurs...

    Text Solution

    |

  7. The work function of a metal is 2.31 eV. Photoelectric emission occurs...

    Text Solution

    |

  8. A beam of light consisting of two wavelengths 600 nm and 500 nm is use...

    Text Solution

    |

  9. A beam of light consisting of two wavelengths 600 nm and 500 nm is use...

    Text Solution

    |

  10. Electromagnetic waves of wavelengths lambda1, lambda2 and lambda3 are ...

    Text Solution

    |

  11. Mention the conditions for the two sources to be coherent.

    Text Solution

    |

  12. Give two points of difference between an interference pattern due to a...

    Text Solution

    |

  13. In a diffraction pattern due to a single slit. how will the angular wi...

    Text Solution

    |

  14. In a diffraction pattern due to a single slit. how will the angular wi...

    Text Solution

    |

  15. In a single slit diffraction pattern, how does the angular width of ce...

    Text Solution

    |

  16. Briefly explain how emf is generated in a solar cell . Draw its I-V ch...

    Text Solution

    |

  17. James Chadwick, in 1932, studied the emission of neutral radiations wh...

    Text Solution

    |

  18. Two nuclei may have the same radius, even though they contain differen...

    Text Solution

    |

  19. The energy of hydrogen atom in an orbit is -1.51 eV. What are kinetic ...

    Text Solution

    |

  20. The electron in a hydrogen atom is typically found at a distance of ab...

    Text Solution

    |