If the frequency of the incident radiation is equal to the threshold frequency, what will be the value of the stopping potential?Group of answer choices100 V0Infinite200 V
Question
If the frequency of the incident radiation is equal to the threshold frequency, what will be the value of the stopping potential?Group of answer choices100 V0Infinite200 V
Solution
The value of the stopping potential will be 0. This is because when the frequency of the incident radiation is equal to the threshold frequency, the photoelectrons just have enough energy to escape from the metal surface. They don't have any extra kinetic energy, so no stopping potential is needed to stop them.
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