Light of Wavelength 439 Nm Is Incident on a Metallic

Multiple Choice

Light of wavelength 439 nm is incident on a metallic surface with a resultant photoelectric stopping potential of 1.2 V.What is the work function of the metal? (h = 6.63 × 10−³⁴ J⋅s,c = 3.00 × 10⁸ m/s,1 eV = 1.60 × 10−¹⁹ J,and 1 nm = 10−⁹ m)

A) 1.63 eV
B) 2.83 eV
C) 4.03 eV
D) 0.82 eV
E) ​2.02 eV