Determine what stopping potential would be observed

Reference no: EM13552336

Two light sources are used in a photoelectric experiment to determine the work function for a particular metal surface. When green light from a mercury lamp (?= 546.1 nm) is used, a stopping potential of0.834V reduces the photocurrent to zero.

(a) Based on this measurement, what is the work function for this metal?

(b) What stopping potential would be observed when using light from a red lamp (?=668.0nm)?

Reference no: EM13552336

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