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  • The maximum kinetic energy of photo-electrons emitted in a photoelectric cell

The maximum kinetic energy \mathrm{(K_{max})} of photo-electrons emitted in a photoelectric cell is measured using lights of various frequencies \mathrm{\nu }. The slope of the graph is equal to

Option: 1

charge on an electron


Option: 2

work-function of emitter


Option: 3

velocity of photon


Option: 4

Planck’s constant


Answers (1)

best_answer

\mathrm{h} v=\mathrm{W}_0+(\mathrm{K} . \mathrm{E} .)

or \mathrm{K.E. =\mathrm{K}_{\max }=\mathrm{h} v-\mathrm{W}_0}

Comparing with \mathrm{y=m x+C, } we find that \mathrm{m=h} (Planck's constant)

 

Posted by

Deependra Verma

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