A 10 D Lens Is Placed in Contact with a 15

question 44

Multiple Choice

A 10 D lens is placed in contact with a 15 D lens.What is the refractive power of the combination?

• A) 15 D
• B) 25 D
• C) 0.67 D
• D) 5.0 D
• E) 1.5 D

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Definitions:

Administrative Expenses

Overheads and other expenses not directly tied to product production, including salaries of executive and administrative personnel and office supplies.

Variable Maintenance Cost

Costs for maintenance that fluctuate with the level of operation or production activity.

Machine-Hours

A unit of measure representing the operational time of a machine, used as a basis for allocating manufacturing overhead in traditional costing systems.

Relevant Range

The range of activity within which assumptions about variable and fixed cost behaviors are valid.