The Thermal Neutron Cross Section of a Proton Is 0

question 54

Multiple Choice

The thermal neutron cross section of a proton is 0.33 bn. If this cross-section were to represent the circular cross-sectional area of the proton presented to the neutron beam, what would be the radius of the proton?

• A)1.2 x 10^-15 m
• B)1.6 x 10^-15 m
• C)3.2 x 10^-15 m
• D)4.1 x 10^-15 m
• E)5.2 x 10^-15 m

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Definitions:

Photosynthesis

The process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water, involving the release of oxygen as a byproduct.

Algae Problem

An algae problem refers to the excessive growth of algae in bodies of water, often resulting from nutrient pollution, which can harm aquatic ecosystems and reduce water quality.

Phosphates

Inorganic chemical salts of phosphoric acid, commonly found in fertilizers and cleaning agents, and play a critical role in biological molecules.

Phosphate

A chemical compound containing the phosphate ion, PO4^3-, important in cellular energy transfer and nutrient transport.