In a photoelectric experiment, if the stopping potential is increased, what happens to the maximum kinetic energy of the emitted electrons?
Practice Questions
1 question
Q1
In a photoelectric experiment, if the stopping potential is increased, what happens to the maximum kinetic energy of the emitted electrons?
It increases
It decreases
It remains the same
It becomes zero
Increasing the stopping potential increases the maximum kinetic energy of the emitted electrons, as the stopping potential is directly related to the kinetic energy of the electrons.
Questions & Step-by-step Solutions
1 item
Q
Q: In a photoelectric experiment, if the stopping potential is increased, what happens to the maximum kinetic energy of the emitted electrons?
Solution: Increasing the stopping potential increases the maximum kinetic energy of the emitted electrons, as the stopping potential is directly related to the kinetic energy of the electrons.
Steps: 5
Step 1: Understand what stopping potential means. It is the voltage needed to stop the emitted electrons from reaching the anode.
Step 2: Know that the maximum kinetic energy of emitted electrons is related to the energy they gain from the incoming light.
Step 3: Realize that when the stopping potential is increased, it means we are applying a higher voltage to stop the electrons.
Step 4: Understand that a higher stopping potential means that the electrons have more energy to overcome this potential.
Step 5: Conclude that since the stopping potential is directly related to the maximum kinetic energy, increasing it will increase the maximum kinetic energy of the emitted electrons.
