Q 2652745634.     The uncertainties in the velocities of two particles A and B are `0.05` and `0.02ms^(-1)` respectively. The mass of B is five times to that of mass A. What is the ratio of uncertainties `((Deltax_A)/(Deltax_B))` in their positions?

A

`2`

B

`0.25`

C

`4`

D

`1`

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