1.

The uncertainty in the position of a flying dust particle of mass 0.1 mg is found to be 10^(-4)m. The uncertainty in the position of another flying dust particle of mass 0.5 mg is also found to be same The uncertainty in the velocity of the heavier dust particle as compared to the lighter dust particle is

Answer»

5 times
`(1)/(5)th`
same
50 times

Solution :For HEAVIER DUST particle, `DELTA x' (m' xx Delta v') = (h)/(4PI)`
As `Delta x = Delta x' :. m Delta v = m' xx Delta v'`
or `(Delta v')/(Delta v) = (m)/(m') = (0.15mg)/(0.5mg) = (1)/(5)`


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