A Radioactive Substance with a Half-Life of 3

question 146

Multiple Choice

A radioactive substance with a half-life of 3.0 days has an initial activity of 2400 Bq. What is its activity after 6.0 days?

• A) 300 Bq
• B) 1800 Bq
• C) 600 Bq
• D) 1200 Bq
• E) 150 Bq

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Definitions:

Historical Cost Principle

A fundamental accounting rule stating that assets must be logged and presented at the cost they were originally bought for.

Going Concern Principle

An accounting assumption that a company will continue operating and not go bankrupt or be liquidated in the foreseeable future.

Straight-Line Deprecation

A method of calculating the depreciation of an asset, dividing its cost by the number of years it is expected to be useful.

Book Value

The net value of a company's assets, found by deducting total liabilities and intangible assets from total assets.