Background Radiation from Cosmic Rays and Radioactive Nuclei in Our

question 27

Multiple Choice

Background radiation from cosmic rays and radioactive nuclei in our surroundings is about 0.13 rem/year. Suppose we assume this all comes from cosmic rays which have an RBE factor of 1.0. The RBE factor for the most dangerous types of radiation is 20. How many rads of the most dangerous radiation could a 100-year-old person have been exposed to in her lifetime without having gone over the recommended limit of 0.5 rem/year?

• A) 0.37
• B) 0.50
• C) 1.85
• D) 13
• E) 37

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Definitions:

Income Statement

An income statement is a financial document that summarizes an organization's revenue, expenses, and profit or loss over a specific period.

Manufacturing Costs

The total expenses involved in the production of goods, including direct materials, direct labor, and manufacturing overhead.

Costing Method

An accounting approach used to determine the cost of production or operation, such as FIFO, LIFO, or average cost method.

Absorption Costing

A method of accounting for costs in which all costs of manufacturing a product, including fixed and variable overheads, are absorbed by the products produced.