Initially a Mixture of Two Radioactive Sources Contains the Same

question 31

Multiple Choice

Initially a mixture of two radioactive sources contains the same number of nuclei of source A and source B.The half-life of A is 2 hours,and the half-life of B is 3 hours.What will be the ratio of remaining nuclei of A divided by remaining nuclei B after 12 hours? (Assume A does not decay into B or vice-versa.)

• A)0.250
• B)0.125
• C)0.5
• D)0.0625
• E)None of these is correct.

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Definitions:

Internal Control

The processes and procedures implemented by an organization to ensure the integrity of financial and accounting information, promote accountability, and prevent fraud.

Budgeting Process

The activity of preparing a detailed financial plan for achieving the financial and operational goals of an organization.

Prime Costs

The combined costs of direct materials and direct labor that are directly attributable to the production of goods.

Production Budget

A Production Budget is an estimate of the number of units that must be manufactured to meet sales goals and, therefore, it details the cost of raw materials, labor, and other resources necessary for production.