Which of the following experimental results for the photoelectric effect suggest

Question

Which of the following experimental results for the photoelectric effect suggests that light can display particle-like behavior?

A.The number of emitted electrons is proportional to the light intensity.

B.The kinetic energy of emitted electrons is independent of the light intensity.

C.No electrons are emitted unless the frequency is above a threshold frequency 0.

D.At very low intensity the incident light is still able to eject electrons from a material if its frequency is above the threshold frequency.

Explanation / Answer

In Photoelectric effect the frequency of the light needed to reach a particular minimum value (depending on the metal) for photoelectrons to start escaping the metal and the maximum kinetic energy of the photoelectrons depended on the frequency of the light not the intensity of the light.

So option (C) is correct

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