Question

The uncertainty in velocity of fast moving bullet is 0.01 kg. Calculate it's uncertainty in position.(h=planks,const.=6.6*10^-34)

Answer 1

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Answer 2

According to Heisenberg's uncertainity principle:

Δx.Δp=

4π

h

Δx.Δv=

4πm

h

Given: h=6.626×10

−34

Js=Planck's constant

m=mass of object =10g=0.01 kg and Δx=±0.01mm=±0.01×10

−3

m=10

−5

m

Upon substitution we get:

Δv=

10

−5

×4×3.14×10

−2

6.626×10

−34

Δv=0.527×10

−27

=5.27×10

−28

m/s

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