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Questions  >>  SAT  >>  Chemistry  >>  Atomic Structure
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A moving electron has $5 \times 10^{-25}$ joules of kinetic energy. What is the de-Brogile wavelength ?

$\begin{array}{1 1} (a)\;6.95 \times 10^{-7}\;m \\ (b)\;6.95 \times 10^{-7}\;m \\ (c)\;5.95 \times 10^{-7}\;m \\ (d)\;9.95 \times 10^{-7}\;m \end{array} $

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