A Radioactive Sample Has a Half-Life of 10 Min

question 65

Multiple Choice

A radioactive sample has a half-life of 10 min.What fraction of the sample is left after 40 min?

• A) 1/2
• B) 1/4
• C) 1/8
• D) 1/16
• E) 1/32

---

Definitions:

BIOS

Basic Input/Output System (BIOS) is firmware used to perform hardware initialization during the booting process and to provide runtime services for operating systems and programs.

Operating System

Software that manages computer hardware and software resources and provides common services for computer programs.

RAID

Redundant Array of Independent Disks, a data storage virtualization technology that combines multiple physical disk drive components into one or more logical units for redundancy or performance improvement.

Fault Tolerance

The capability to continue functioning after a hardware or software failure. An example of fault tolerance with hard drives is RAID configurations.