Photo Electric Effect

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Question

Light of wavelength 5000 $\overset{0}{A}$ falls on a sensitive plate with photo electric work function 1.9 eV. The kinetic energy of the photo electrons emitted will be

Moderate

Solution

$K{E_{\max }} = E - {W_0} = \frac{{hc}}{\lambda } - {W_o}\$
$= \frac{{12400eV{\mathop A\limits^0 }}}{{5000{\mathop A\limits^0 }}} - 1.9eV = 0.58eV$

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Photo Electric Effect

Remember concepts with our Masterclasses.

Light of wavelength 5000 A0 falls on a sensitive plate with photo electric work function 1.9 eV. The kinetic energy of the photo electrons emitted will be

Ready to Test Your Skills?

free study material

Light of wavelength 5000 $\overset{0}{A}$ falls on a sensitive plate with photo electric work function 1.9 eV. The kinetic energy of the photo electrons emitted will be