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In photoelectric effect the slope of str...

In photoelectric effect the slope of straight line graph between stopping potential `(V_(s))` and frequency of incident light (v) gives

A

charge on electrons

B

work function of emitter

C

Planck's constant

D

ratio of Planck 's constant to charge on electron

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The correct Answer is:
D
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The emission of electrons from a metal surface exposed rto light radaition of appropriate wavelength is called photoelectric effect .The emmited electron are called photo=-weklectron work function of threshold energy may be defined as the minimum amount of energy required to ejected electron from a most surface .According to Einstein Maximum kinetic energy of ejected electron = Absorbed energy - Work function (1)/(2) mv_(max)^(2) = h(v) - h(v_(n)) = hv [(1)/(lambda) - (1)/(lambda_(n))] Where v_(n) and lambda_(0) are thereshold frequency and threshold wavelength respectively Sopping potential : it is the miximum potential at which the photoelectric current becomes zero if V_(0) is the stopping potential eV_(0) = h(v- v_(0)) In the photoelectric currect effect the shape of strainght line graph between stopping potential (V_(0)) and frequency of incident light (V) gves

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