Home
Class 12
PHYSICS
Define 1 eV....

Define 1 eV.

Text Solution

Verified by Experts

1 eV is the energy gained by an electron when it is accelerated by a potential difference of `|V.| eV=1.609 xx 10^(-19)J`.
Promotional Banner

Topper's Solved these Questions

  • DUAL NATURE OF RADIATION AND MATTER

    NEW JOYTHI PUBLICATION|Exercise CONTINUOUS EVALUATION (ASSIGNMENT)|4 Videos
  • DUAL NATURE OF RADIATION AND MATTER

    NEW JOYTHI PUBLICATION|Exercise PREVIOUS YEAR QUESTIONS|4 Videos
  • DUAL NATURE OF RADIATION AND MATTER

    NEW JOYTHI PUBLICATION|Exercise PRACTICE PROBLEMS FOR SELF ASSESSMENT|5 Videos
  • CURRENT ELECTRICITY

    NEW JOYTHI PUBLICATION|Exercise COMPETITIVE EXAM CORNER|37 Videos
  • ELECTRIC CHARGES AND FIELDS

    NEW JOYTHI PUBLICATION|Exercise Competitive Exam Corner|20 Videos

Similar Questions

Explore conceptually related problems

Light of two different frequencies whose photons have energies 1 eV and 2.5 eV respectively illuminate a metallic surface whose work function is 0.5 eV successively. Find the ratio of maximum speeds of emitted electrons.

Define the unit of resistance ? (or) Define one ohm.

4 eV is the energy of the incident photon and the work function is 2 eV. The stopping potential will be

The surface of a metal is illuminated with the light of 400 nm. The kinetic energy of the ejected photoelectrons was found to be 1.68 eV. The work function of the metal is (hc = 1240 eV nm)

Express one joule in eV. Taking 1 amu = 931 MeV. Calculate the mass of C-12 atom.

NEW JOYTHI PUBLICATION-DUAL NATURE OF RADIATION AND MATTER -EVALUATION QUESTIONS AND ANSWERS
  1. a. The wave nature of matter is not noticeable in our daily observati...

    Text Solution

    |

  2. What do the graphs represent?

    Text Solution

    |

  3. Which of the following statements are is not correct about a photon?

    Text Solution

    |

  4. a. Every metal has a definite work function. Why all photoelectrons ...

    Text Solution

    |

  5. Eventhough metals have free electrons, they cannot escape from metal ...

    Text Solution

    |

  6. Define 1 eV.

    Text Solution

    |

  7. What are the factors on which the rate of thermionic emission depends?

    Text Solution

    |

  8. Does photoelectric effect violate the law of conservation of energy?

    Text Solution

    |

  9. Give examples for metals sensitive to UV rays and then for visible lig...

    Text Solution

    |

  10. Why is photocurrent proportional to intensity?

    Text Solution

    |

  11. What is saturation current?

    Text Solution

    |

  12. How does a fire alarm work?

    Text Solution

    |

  13. Does wave theory give proper explanation for photoelectric effect?

    Text Solution

    |

  14. Why is light not deflected by electric and magnetic fields?

    Text Solution

    |

  15. Why are alkali metal most suited for photoelectric emission?

    Text Solution

    |

  16. Why wooden surface does not exhibit photoelectric effect?

    Text Solution

    |

  17. A fast moving bullet is not diffracted by a crystal surface, while an ...

    Text Solution

    |

  18. An electron and a proton have same speed. How are their wavelength rel...

    Text Solution

    |

  19. Millikan verified Einstein's photoelectric equation. How?

    Text Solution

    |

  20. If a proton and electron have the same de-Broglie wavelength, then

    Text Solution

    |