NEET Physics Photoelectric Effect MCQ Question
In a photoelectric effect experiment, if the frequency of the incident radiation is doubled while keeping the intensity constant, how does the maximum kinetic energy (K_max) of the emitted photoelectrons change?
K_max doubles.
K_max remains the same.
K_max increases but does not double.
K_max decreases.
Correct Answer
Detailed Explanation
According to the NCERT context, K_max depends linearly on the frequency of the incident radiation (Eq. 11.2). Therefore, doubling the frequency increases K_max, but it doesn't necessarily double it.
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