NEET Physics Photoelectric Effect MCQ Question
Which of the following combinations about the photoelectric effect is correct?
The maximum kinetic energy of photoelectrons increases with frequency and is independent of intensity; there is no emission below the threshold frequency.
The stopping potential increases with the intensity of the incident radiation; photoelectric emission occurs at any frequency if the intensity is high enough.
Different metals have the same threshold frequency for photoelectric emission; ultraviolet light does not lead to emission in any metal.
Photoelectric emission is a delayed process; it requires high temperatures to occur regardless of light frequency.
Correct Answer
Detailed Explanation
The maximum kinetic energy of photoelectrons is indeed dependent on frequency and independent of intensity, and no emission occurs below the threshold frequency, as stated in the NCERT context.
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