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The measurement of the electron position is associated with an uncertainty in momentum, which is equal to \( 1 \times 10^{-18} \mathrm{~g} \mathrm{cms}^{-1} \). The uncertainty in electron velocity is: (mass of an electron is \( 9 \times 10^{-28} \mathrm{~g} \) )
(A) \( 1 \times 10^{6} \mathrm{cms}^{-1} \)
(B) \( 1 \times 10^{5} \mathrm{~cm} \mathrm{~s}^{-1} \)
(C) \( 1 \times 10^{11} \mathrm{cms}^{-1} \)
(D) \( 1.1 \times 10^{9} \mathrm{~cm} \mathrm{~s}^{-1} \)
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