If uncertainties in the measurement of position and momentum of a microscopic object of mass $m$ are equal,then the uncertainty in the measurement of velocity is given by the expression:

  • A
    $\sqrt{\frac{h}{4 \pi m}}$
  • B
    $\sqrt{\frac{h}{4 \pi}} \times \frac{1}{m}$
  • C
    $\frac{h}{4 \pi} \times \sqrt{\frac{1}{m}}$
  • D
    $\sqrt{\frac{h}{2 \pi m}}$

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