Find the maximum kinetic energy of electrons ejected from a certain material if the material's work function is 2.3 eV and the frequency of the incident radiation is `2.5 xx 10^(15) Hz`.

Explanation

To find the maximum kinetic energy of electrons ejected from a material, we can use the photoelectric equation:

\[ K.E. = E_{in} - \phi \]

where:
- \( K.E. \) is the maximum kinetic energy of the ejected electrons,
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