The stopping potential for electrons emittedfrom a surface


The stopping potential for electrons emittedfrom a surface illuminated by light of wavelength 480 nm is 0.890 V. When the incident wavelength is changed to a new value, thestopping potential is 1.31 V.

(a) What is this new wavelength?

nm

(b) What is the work function for the surface?

eV

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Physics: The stopping potential for electrons emittedfrom a surface
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