John's Face Is 20 Cm in Front of a Concave

question 87

Multiple Choice

John's face is 20 cm in front of a concave shaving mirror of focal length 30 cm. How large an image does he observe?

• A) half as large as his face
• B) of the same size as his face
• C) twice as large as his face
• D) three times as large as his face
• E) four times as large as his face

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Definitions:

Japanese Yen

The official currency of Japan, used as a medium of exchange and a standard of value within the country.

Upsloping

Describes a curve or line on a graph that shows an increase in value or quantity as it moves from left to right.

Flexible Exchange Market

Refers to a foreign exchange market where exchange rates are allowed to move due to market forces without intervention by country governments.

Equilibrium Quantity

The amount of goods supplied that is equal to the amount of goods demanded in a market, reached at the intersection of the supply and demand curves.