Question: Question 9 ( 1 point ) A single electron is ejected towards a solid barrier which contains a narrow opening. After passing through the opening,

Question

9 (1

point

)

A single electron is ejected towards a solid barrier which contains a narrow opening. After passing through the opening, the trajectory of the electron is found to spread out.

Which of the following interventions will reduce the spreading of the electron's motion?

Decreasing the electron's energy.

Decreasing the width of the opening.

Increasing the width of the opening.

Decreasing the electron's momentum.

Nothing can be done to influence the spreading of the electron's motion.

Question 9 ( 1 point ) A single electron is

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