Figure 27.21 shows a graph of stopping potential versus frequency for a photoelectric material. Determine (a) Plancks
Question:
(a) Plancks constant and
(b) The work function of the material from the data contained in the graph.
Transcribed Image Text:
3 30 40+ 50 0 70 80 90 100 110 120 石=43.9 × 1013 Hz Frequencyf (1013 Hz)
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