The uncertainty in the position of a flying dust particle of mass \( 0.1 \mathrm{mg} \) is found....

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The uncertainty in the position of a flying dust particle of mass \( 0.1 \mathrm{mg} \) is found to be \( 10^{-4} \mathrm{~m} \). The uncertainty in the
\( \mathrm{P} \)
position of another flying dust particle of mass \( 0.5 \mathrm{mg} \) is also found to be same.

If a third flying dust particle of mass \( 1 \mathrm{mg} \) had the same uncertainty in position as in its velocity, the uncertainty in its momentum would be
(1) \( 5.2 \times 10^{-28} \mathrm{~kg} \mathrm{~ms}^{-1} \)
(2) \( 5.2 \times 10^{-34} \mathrm{~kg} \mathrm{~ms}^{-1} \)
(3) \( 7.2 \times 10^{-15} \mathrm{~kg} \mathrm{~ms}^{-1} \)
(4) \( 7.2 \times 10^{-21} \mathrm{~kg} \mathrm{~ms}^{-1} \)


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