A Sample of a Radioisotope Shows an Activity of 999

question 105

Multiple Choice

A sample of a radioisotope shows an activity of 999 disintegrations per minute due to beta decay.If after 1.10 years the activity is 952 disintegrations per minute, what is the half-life of this radioisotope?

• A)4.38 × 10^-2 yr
• B)11.4 yr
• C)0.25 yr
• D)15.8 yr
• E)9.1 yr

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Definitions:

Output Decreased

A reduction in the quantity of goods or services produced by a company, industry, or economy.

Tobacco Industry

A sector of the economy encompassing the farming, manufacture, and sale of tobacco and tobacco-related products.

Government Intervention

Regulatory actions taken by a government in order to affect or interfere with decisions made by individuals, groups, or organizations regarding economic and social matters.

Equilibrium Price

The price at which the quantity of a good or service demanded by consumers is equal to the quantity supplied by producers, resulting in a stable market condition.