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)

Light of wavelength 450 nm is incident on a metal target (work functio

1.	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)
A.	4.56 V
B.	0.96 V
C.	2.76 V
D.	0.56 V
Answer» C. 2.76 V

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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)

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