Which of the following statements are incorrect about the photoelectric effect ?

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The number of photoelectrons in proportional to the energy of light incident

Highly electropositive metals like cesium can easily exhibit photoelectric effect

The kinetic energy of photo electron depends on nature of metal

The kinetic energy of photoelectron is proportional to the intensity of light

answer is B, C.

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Detailed Solution

No. of photo electrons depends on intensity of light and kinetic energy of photo electrons depends on frequency of radiation.

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