A Certain Radioactive Isotope Placed near a Geiger Counter Registers

question 109

Multiple Choice

A certain radioactive isotope placed near a Geiger counter registers 160 counts per second. Eight hours later, the counter registers 10 counts per second. What is the half life of the isotope?

• A) 4 hours
• B) 6 hours
• C) 8 hours
• D) 2 hours
• E) none of these

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Definitions:

Queue

A data structure or list where elements are added from one end (rear) and removed from the other (front), adhering to the First-In-First-Out (FIFO) principle.

Customers

People or organizations that buy products or services from a company.

Rate

A measure of the speed at which something happens or is processed, often expressed as a unit per time.

Minute

A unit of time equal to 60 seconds or 1/60th of an hour, commonly used to measure the duration of time.