ANSWER PART C CORRECTLY. Froblem 38 43 Part B In ptol electic efect expenmert. I

Question

ANSWER PART C CORRECTLY.

Froblem 38 43 Part B In ptol electic efect expenmert. Ihe stopping poental was measured or sveral diferent wawelengthe oIncident Ight The data arc a 2.8 2.4 2.0 161.273* Waval ngth, (nm) | Stopping potential. Voo (V) 018 040 505 450 AC 0 L00 2010400 Graphing cit cr V bo versus or / versus V esa stag t line in th ad shown abore e choce to p or g on the ve cal ad; and on the hor zontal a i: From the cquation orte Inc of best t gMen, dcte mne the metal tsed gold Correct Part C Express your answer to three signiticant hgures

Explanation / Answer

C] We know that, eVstop = hc/lambda - threshold energy

Vstop = hc/[e*lambda] - threshold potential

comparing this equation with equation in graph,

hc/[e*lambda] = 1.273*10^-6/lambda

hc/e = 1.273*10^-6

h = 1.273*10^-6*1.6e-19/3e8

= 6.79*10^-34 Js answer

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