Multiple Choice
Light of wavelength 521 nm is incident on a target metal that has a work function of 1.6 eV.What stopping potential is required for this combination in a phototube? (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) 4.0 V
B) 0.8 V
C) 2.0 V
D) 0.4 V
E) 2.4 V
Correct Answer:
Verified
Correct Answer:
Verified
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