An alpha particle (mass = 6.6X10⁻²⁴ g) emitted by a radium isotope travels at 3.4X10⁷ ± 0.1X10⁷ mi/h.
(b) What is the uncertainty in its position?

Respuesta :

The uncertainty in position of the alpha particle is 1.79 x [tex]10^{-3}[/tex] m

Given that an alpha particle is emitted by a Radium isotope.

Mass of the alpha particle, m = g

Velocity of the alpha particle, v = 3.4 x 10⁷ ± 0.1 x 10⁷ mi/h.

So the error in the measurement of velocity, Δv = 0.1X10⁷ mi/h.

                                                                                = 0.44704 x 0.1 x10⁷ m/s

                                                                                = 0.044704 x 10⁷ m/s

Now by Heisenberg's Uncertainty principle,

[tex]\Delta x\times m\Delta v=\frac{h}{4\pi}[/tex] , where h = [tex]6.626\times10^{-34}[/tex] Js

So the uncertainty in position , Δx = [tex]\frac{h}{4\pi\times m\Delta v}[/tex]

                                                        =  [tex]\frac{6.626\times10^{-34}}{4\times 3.14 \times 6.6\times 10^{-24}\times 0.044704 \times 10^7}[/tex]

                                                        =1.79 x [tex]10^{-3}[/tex] m

Learn more about Heisenberg's Uncertainty principle at https://brainly.com/question/16941142

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