[" A photon of energy "4.5eV" is "],[" s...

[" A photon of energy "4.5eV" is "],[" strikes on metal surace of "],[" work function "3.0eV." If "],[" uncertainty in position is "(25)/(4 pi)A" ."],[" Find uncertainty in "],[" measurement of de-Broglie "],[" wavelength (in "_(A)^(@)).]

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[" A photon of energy "4.5eV" is "],[" strikes on metal surace of "],[" work function "3.0eV." If "],[" uncertainty in position is "(25)/(4 pi)A" ."],[" Find uncertainty in "],[" measurement of de-Broglie "],[" wavelength (in "_(A)^(@)).]

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