Plot a labelled graph of maximum kinetic energy of photo electrons versus frequency of incident radiation. State how you will obtain the value of Planck.s constant h from the graph.

Explanation

To solve the problem of plotting a graph of maximum kinetic energy of photoelectrons versus frequency of incident radiation and determining Planck's constant from the graph, follow these steps:

### Step 1: Understand the Photoelectric Effect
The photoelectric effect is described by Einstein's photoelectric equation, which states that the maximum kinetic energy (K.E.) of photoelectrons is given by:
\[ K.E. = h \nu - \phi \]
where:
- \( K.E. \) is the maximum kinetic energy of the emitted photoelectrons,
- \( h \) is Planck's constant,
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