In a photoelectric experiment, if the stopping potential is increased, what happ

Practice Questions

Q1
In a photoelectric experiment, if the stopping potential is increased, what happens to the energy of the emitted electrons?
  1. It increases
  2. It decreases
  3. It remains the same
  4. It becomes negative

Questions & Step-by-Step Solutions

In a photoelectric experiment, if the stopping potential is increased, what happens to the energy of the emitted electrons?
  • Step 1: Understand what stopping potential means. It is the voltage needed to stop the emitted electrons from reaching the detector.
  • Step 2: Know that the energy of emitted electrons comes from the light that hits the material, not from the stopping potential.
  • Step 3: Realize that increasing the stopping potential means you are applying a stronger voltage to stop more electrons.
  • Step 4: Conclude that while more electrons can be stopped, the energy of the electrons that are emitted remains the same.
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