Q$9$T$.$ Suppose that at a certain time a quanton has a well$-$

defined position x $=0\mathrm{.}15$ nm$.$ At that time, we perform an

experiment to determine the quanton's momentum, and find it has a value that corresponds to a de Broglie wavelength of $0\mathrm{.}45$ nm to a high degree of precision. What can we say about the quanton's position after the experiment?

$$It is still $0\mathrm{.}15$ nm$.$

$$It is now $0\mathrm{.}45$ nm$.$

$$It is now within #$0,45$ nm of $0\mathrm{.}15$ nm$.$

$$It is now undefined but probably close to $0\mathrm{.}15$ nm$.$

$$It is now completely undefined.

$$Other $($specify$).$