The "Third-Life," the Time It Takes Nuclei to Decay Until $\beta$

question 38

Multiple Choice

The "third-life," the time it takes nuclei to decay until one-third of the original amount remains,expressed in terms of the decay constant $\beta$ ,is

• A)(ln 2)/3\(\lambda\)
• B)(ln 3)/\(\lambda\)
• C)(ln 0.333)/\(\lambda\)
• D)3(ln 2)/\(\lambda\)
• E)\(\lambda\)/3

---

Definitions:

Lymphocytes

A type of white blood cell that is one of the main types of immune cells, responsible for producing antibodies to fight off infections.

Lymph Node

Small mass of lymphoid tissue through which lymph filters; contains many B cells and T cells.

Atherosclerosis

A disease characterized by the buildup of fats, cholesterol, and other substances in and on the artery walls, which can restrict blood flow.

Fibrinogen

A blood plasma protein that's converted into fibrin by thrombin in the blood clotting process, essential for wound healing.