A Sample of Radon Has an Activity of 80,000 Bq

question 54

Multiple Choice

A sample of radon has an activity of 80,000 Bq. If the half-life of radon is 15 h, how long before the sample's activity is 5,000 Bq?

• A) 10 h
• B) 20 h
• C) 45 h
• D) 30 h
• E) 60 h

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Definitions:

Extraordinary Repair

Significant restorations or overhauls that significantly extend the useful life of an asset beyond its original projection.

Manufacturing Warehouse

A facility where goods are produced or stored, typically involving both machinery and labor in the production process.

Routine Maintenance

Routine maintenance refers to the regular upkeep actions performed to keep equipment or systems functioning efficiently and prevent unforeseen breakdowns.

Accumulated Depreciation

The total amount of depreciation expenses allocated to a fixed asset since it was put into use, reducing its book value.