1. Two light sources are used in a photoelectric experiment to determine the work function of a particular metal. When g
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1. Two light sources are used in a photoelectric experiment to determine the work function of a particular metal. When green light of 2 = 546.1 nm is used, the stopping potential of 0.376 V for the photoelectrons is measured. (a) Based on this measurement, what is the work function for this metal? (b) What is the stopping potential if yellow light of λ = 587.5 nm? (25 Marks)