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A graph regarding photoelectric effect i...

A graph regarding photoelectric effect is shown between the maximum kinetic energy of electrons and the frequency of the incident light. On the basis of data as shown in the graph, calculate (a) threshold frequency , (b) work- function, (c ) planck constant

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The correct Answer is:
A, B, C, D
(a) `f_0 = f_A = 10xx10^(14)Hz = 10^(15) Hz`
(b) `W=|K_(max)|_c = 4 eV`
(c ) `W = hf_0 rArr h = (W)/(f_0).`
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