12th Class Physics Photo Electric Effect, X- Rays & Matter Waves Question Bank Dual Nature of Radiation and Matter Conceptual Problems

  • question_answer
    The stopping potential in an experiment on photoelectric effect is\[\mathbf{1}.\mathbf{5}\text{ }\mathbf{V}\]. What is the maximum kinetic energy of the photoelectrons emitted?

    Answer:

                    \[{{K}_{\max }}=e{{V}_{0}}=1.6\times {{10}^{-19}}C\times 1.5V\]                 \[=24\times {{10}^{-19}}J\] or \[\mathbf{1}\mathbf{.5eV}\]


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