Suppose that at a certain time a quanton has a well-defined position $x=0.15 \mathrm{~nm}$. 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 $0.45 \mathrm{~nm}$ to a high degree of precision. What can we say about the quanton's position after the experiment?
A) It is still $0.15 \mathrm{~nm}$.
B) It is now $0.45 \mathrm{~nm}$.
C) It is now within $\pm 0.45 \mathrm{~nm}$ of $0.15 \mathrm{~nm}$.
D) It is now undefined but probably close to $0.15 \mathrm{~nm}$.
E) It is now completely undefined.
F) Other (specify).

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The Answer of Suppose that at a certain time a quanton has a well-defined position $x=0.15 \mathrm{~nm}$. 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 $0.45 \mathrm{~nm}$ to a high degree of precision. What can we say about the quanton's position after the experiment?
A) It is still $0.15 \mathrm{~nm}$.
B) It is now $0.45 \mathrm{~nm}$.
C) It is now within $\pm 0.45 \mathrm{~nm}$ of $0.15 \mathrm{~nm}$.
D) It is now undefined but probably close to $0.15 \mathrm{~nm}$.
E) It is now completely undefined.
F) Other (specify).

Suppose That at a Certain Time a Quanton Has a Well-Defined