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Physics
Dual Nature of Radiation and Matter
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b
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d
$ \lambda = \frac{2\pi}{k}= 5 \times 10^{-7} m = 5000A^o$
$ \text{Stopping Potential } V_s = \frac{hc}{e\lambda} - \frac{\phi}{e} = \frac{12375}{5000}V - 2V = 0.48V$