An Alternate Statement of the Uncertainty Principle Involves Relationship Between $\Delta$

question 55

Multiple Choice

An alternate statement of the uncertainty principle involves relationship between position $\Delta$ x) and momentum $\Delta$ p) uncertainties in the form . An electron has a kinetic energy of 1.5 eV. If its momentum is uncertain by ± 2.5%, the minimum uncertainty in its position is approximately

• A) 3.2 nm.
• B) 5.0 nm.
• C) 1.0 nm.
• D) 2.2 nm.
• E) 1.6 nm.

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Definitions:

Compensation

Following brain damage, the neuroplastic ability to modify behavior from that used prior to the damage.

Channelrhodopsin-2 (ChR2)

A light-sensitive protein derived from algae used in optogenetics to control the activity of neurons with light.

Halorhodopsin (NpHR)

A light-activated chloride pump used in optogenetics to inhibit neuronal activity by hyperpolarizing neurons when exposed to light.

Depolarize

To reduce the polarization of a neuron, making the inside of the cell less negative compared to the outside, and promoting the generation of an action potential.