The Focal Length of a Concave Mirror Has a Magnitude

question 65

Multiple Choice

The focal length of a concave mirror has a magnitude of 20 cm.What is its radius of curvature?

• A)10 cm
• B)40 cm
• C)-40 cm
• D)20 cm
• E)-20 cm

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Definitions:

Casting Department

The Casting Department in a manufacturing setting is where raw materials are poured into molds to form parts or products through the casting process.

Predetermined Overhead Rate

An estimated rate used to allocate manufacturing overhead costs to individual products based on a certain activity.

Machine-Hours

A measure of production output or activity, where one machine-hour equals one hour of operation of a machine.

Assembly Department

An area in a manufacturing plant where parts are put together to form the end products.