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Using the graph as in figure for stoppin...

Using the graph as in figure for stopping potential vs the incident frequency of photons. Calculate plank's constant.

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Einstein.s photoelectric equation is
`eV_0 = hv-W_0` on differentiation, we get `eDeltaV_0 = h Delta v`
`therefore=(DeltaV_0)/(Deltav)=(1.23-0)/((8-5)xx10^14)xx1.6 xx10^-19Js = 6.56xx10^-34Js`
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