A Dentist Uses a Concave Mirror (Focal Length 2 Cm)

question 11

Multiple Choice

A dentist uses a concave mirror (focal length 2 cm) to examine some teeth. If the distance from the object to the mirror is 1 cm, what is the magnification of the tooth?

• A) 6
• B) 1
• C) 4
• D) 2
• E) 1.5

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Definitions:

Marginal-Cost Pricing

A pricing strategy where the price of a good or service is equal to the incremental cost to produce one more unit of a good.

Government Subsidy

A financial contribution provided by the government to support industries or activities beneficial to the public interest, aimed at reducing their costs or encouraging more production and consumption.

Marginal Cost

The incremental cost involved in producing an additional unit of a product or service.

Natural Monopolist

A single supplier in a market that can supply the entire market at a lower cost than any combination of two or more suppliers.