An Electron with Kinetic Energy 589 KeV Collides with a Positron

question 10

Multiple Choice

An electron with kinetic energy 589 keV collides with a positron of the same kinetic energy moving in the opposite direction. Calculate the wavelength of the two identical photons produced in the annihilation.

• A) 4.22 × 10^-3 nm
• B) 1.13 × 10^-3 nm
• C) 2.11 × 10^-3 nm
• D) 2.26 × 10^-3 nm
• E) 2.26 × 10^-3 m

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Definitions:

Lateralized

Refers to the tendency for some neural functions or cognitive processes to be more dominant in one hemisphere of the brain than the other.

Amygdala

A part of the brain involved in emotion regulation, especially fear and pleasure responses, as well as memory processing.

Asymmetry

Lack of equality or equivalence between parts or aspects of something; lack of symmetry.

Cortical Space

Refers to the regions of the cerebral cortex involved with processing various sensory and cognitive information.