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  • An electron and a photon each have a wavelength of 1.00 nm. Find (a) their momenta

Q: 11.16 (a) An electron and a photon each have a wavelength of  1.00\hspace{1mm}nm . Find their momenta.

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Their momenta depend only on the de Broglie wavelength, therefore, it will be the same for both the electron and the photon

\\p=\frac{h}{\lambda }\\ p=\frac{6.62\times 10^{-34}}{10^{-9}}\\ p=6.62\times 10^{-25}kg\ m\ s^{-1}

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