According to Heisenberg's uncertainty principle,the product of uncertainties in position and velocity for an electron of mass $9.1 \times 10^{-31} \ kg$ is

  • A
    $2.8 \times 10^{-3} \ m^2 \ s^{-1}$
  • B
    $3.8 \times 10^{-5} \ m^2 \ s^{-1}$
  • C
    $5.8 \times 10^{-5} \ m^2 \ s^{-1}$
  • D
    $6.8 \times 10^{-6} \ m^2 \ s^{-1}$

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