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Write Einstein’s photoelectric equation ...

Write Einstein’s photoelectric equation and mention which important features in photoelectric el explained with the help of .this equation. The maximum kinetic energy of the photoelectrons gets doubled when the wavelength of light the surface changes from `lambda_(1)` to `lambda_(2)`. Derive the expressions for the threshold wavelength `lambda_(0)` and wo for the metal surface.

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### Step-by-Step Solution **Step 1: Write Einstein’s Photoelectric Equation** Einstein's photoelectric equation is given by: \[ E = \phi + K.E. ...
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