NEET Physics Photoelectric Effect MCQ Question
Which of the following statements regarding the photoelectric effect is correct?
The maximum kinetic energy of emitted photoelectrons increases with the intensity of radiation.
Photoelectric emission occurs only when the frequency of incident light exceeds the threshold frequency.
Intensity of radiation determines the maximum kinetic energy of photoelectrons.
Ultraviolet light is necessary for all metals to emit photoelectrons.
Correct Answer
Detailed Explanation
Photoelectric emission occurs only when the frequency of the incident light exceeds a certain threshold frequency, which depends on the nature of the material, as indicated in the context. The other statements reflect common misconceptions about the relationship between intensity, frequency, and kinetic energy.
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