How Far from a Lens Having a Focal Length of +50

question 64

Multiple Choice

How far from a lens having a focal length of +50 mm must the object be placed if it is to form a virtual image that is 3.0 times the size of the object?

• A)33 mm
• B)42 mm
• C)48 mm
• D)54 mm

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Definitions:

Marginal Cost

The increase in total cost that arises from producing an additional unit of a good or service.

Wage Rate

The amount of money paid to an employee per unit of time for labor or services rendered.

Monopolist

A monopolist is a single seller in a market who has significant control over the price and supply of a product or service.

Competitive Labor Market

A market where numerous buyers (employers) and sellers (workers) meet, with the price of labor (wages) determined by the supply of and demand for labor.