NEET Physics Photoelectric Effect MCQ Question
What is the threshold frequency characteristic of a metal in the photoelectric effect?
It is the minimum frequency required to emit photoelectrons.
It is the maximum frequency of incident light that can cause emission.
It is the frequency at which photoelectric current becomes maximum.
It is the frequency above which the intensity of light does not matter.
Correct Answer
Detailed Explanation
The threshold frequency (n0) is the minimum frequency required for photoelectric emission to occur, regardless of the intensity of the incident light, as stated in the NCERT context.
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