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)
1
4.56 V
2
0.96 V
3
2.76 V
4
0.56 V
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)