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प्रश्न
Plot a labelled graph of |Vs| where Vs is stopping potential versus frequency f of the incident radiation. State how will you use this graph to determine the value of Planck's constant?
संख्यात्मक
उत्तर
The graph of stopping potential, |Vs| versus frequency f, of incident radiation is given below:
The value of Plank's constant can be determined, from the above graph as:
h = e, slope of (Vs - f) graph
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