AAI ATC Junior Executive 2016 Shift 2 Paper
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Question : 97 of 120
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Light of wavelength 450 nm is incident on a metal target (work function = 1.8 eV) in a phototube. What is the value of stopping potential in this case?
(h = 6.63 × 10-34J s, c = 3 × 108 m/s, 1 eV = 1.6 × 10-19 J)
(h = 6.63 × 10-34J s, c = 3 × 108 m/s, 1 eV = 1.6 × 10-19 J)
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