An ultraviolet light of wavelength 2000 Å irradiates a photo cell made of molybdenum metal . If the stopping potential is `-1.5

An ultraviolet light of wavelength 2000 Å irradiates a photo cell made of molybdenum metal . If the stopping potential is `-1.5`V , what is the work function of the metal ?
A. `2.5 xx 10^(-19)` J
B. `5 xx 10^(-19)` J
C. `7.5 xx 10^(-19) J`
D. `1 xx 10^(-19)` J

An ultraviolet light of wavelength 2000 Å irradiates a photo cell made of molybdenum metal . If the stopping potential is `-1.5`V , what is the work f

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