Q. 6. In the study of a photoelectric effect the graph between the stopping potential V and frequency of the incident radiation on two different metals P and Q is shown below. 14-1 V2 (Volt) P -2 v(x10¹¹4)Hz → (i) Which one of the two metals has higher threshold frequency? (ii) Determine the work function of the metal which has greater value. (iii) Find the maximum kinetic energy of electron emitted by light of frequency 8 x 10¹4 Hz for this metal.

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