The threshold frequency \( v_{0} \) for a metal is \( 7.0 \times 10^{14} \mathrm{~s}^{-1} \). Ca...

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The threshold frequency \( v_{0} \) for a metal is \( 7.0 \times 10^{14} \mathrm{~s}^{-1} \). Calculate the kinetic energy of an electron emitted when radiation of frequency \( v=1.0 \times 10^{15} \mathrm{~s}^{-1} \) hits the metal.
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