In a photoelectric experiment, increasing the intensity of incident light :

Question

increases the number of photons incident and also increases the K.E. of the ejected electrons

increases the frequency of photons incident and increases the K.E. of the ejected electrons

increases the frequency of photons incident and the K.E. of the ejected electrons remains unchanged

increases the number of photons incident and the K.E. of the ejected electrons remains unchanged

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