A Technologist Is Sitting near a Bone Mineral Densitometer, Which

question 16

Multiple Choice

A technologist is sitting near a bone mineral densitometer, which is a point source of x-rays.If the x-ray intensity at 1 m from the x-ray beam is 0.20 mR/hr, to what distance from the x-ray beam should the technologist move to decrease total weekly exposure to the occupational limit of 2 mR for a 40-hour workweek?

• A)0.5 m
• B)1.5 m
• C)2.0 m
• D)2.5 m

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Definitions:

Marginal Cost

The extra cost incurred from producing one additional unit of a good or service.

Marginal Product

The additional output that results from a one-unit increase in the input of a production factor, holding all other inputs constant.

Marginal Revenue Product

the additional revenue generated from using one more unit of a factor of production.

Marginal Revenue Product

The extra income created from using another unit of an element like labor or capital.