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Uncertainty in position of a hypothetica...

Uncertainty in position of a hypothetical subatomic particle is `1 "Å"` and uncertainty in velocity is `(3.3)/(4 pi) xx 10^(5)` m/s then the mass of the particle is approximately ( h = `6.6 xx 10^(-34)` Js) :

A

`2 xx 10^(-28)` kg

B

`2 xx 10^(-27)` kg

C

`2 xx 10^(-29)` kg

D

`4 xx 10^(-29)` kg

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The correct Answer is:
C
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