Question

Calculate the uncertainty in position of particle when uncertainty in momentum is
a) 1 X 10-3 g cm s-1 b) zero​

Answer 1

(a) Given,

ΔP=1×10 −3 g cm sec −1

h=6.62×10

−27

erg−sec

π=3.142

According to uncertainty principle,

Δx⋅Δp≥

4π

h

So, Δx≥

4π

h

≥

4×3.142

6.62×10

−27

×

10

−3

1

=0.527×10

−24

cm

(b) When the value of Δp=0, the value of Δx will be infinity.