2. Questions Bank
  3. JEE Main & Advanced
  4. Physics
  5. Photo Electric Effect, X- Rays & Matter Waves

JEE Main & Advanced Physics Photo Electric Effect, X- Rays & Matter Waves Question Bank Photon and Photoelectric Effect

  • question_answer
    A photocell stops emission if it is maintained at 2V negative potential. The energy of most energetic photoelectron is  [JIPMER 1999]

    A)            2eV                                          

    B)            2J

    C)            2kJ

    D)            2keV

    Correct Answer: A

    Solution :

               \[{{K}_{\max }}=(\,|{{V}_{0}}|\,)\,eV=2eV.\]


You need to login to perform this action.
You will be redirected in 3 sec spinner