Two Lenses, the First with Focal Length −12

question 14

Multiple Choice

Two lenses, the first with focal length −12.5 cm and the second with focal length 20.0 cm, are separated by 15.0 cm. If an object is placed 50.0 cm in front of the first lens, what is the total magnification?

• A) 20.0
• B) −20.0
• C) 1.25
• D) −1.25
• E) −0.800

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Definitions:

Indirect Manufacturing Cost

Expenses related to production that are not directly tied to a specific product, such as maintenance and utilities.

Produced Units

The total number of units manufactured within a specific period.

Direct Manufacturing Cost

The total of direct materials and direct labor costs that are tied directly to the production process of a product.

Produced Units

The aggregate quantity of units produced over a defined time frame.