A Magnifying Glass Has a Focal Length Of $7.0 \mathrm {~cm}$

question 29

Multiple Choice

A magnifying glass has a focal length of $7.0 \mathrm {~cm}$ . What is the angular magnification if the image is viewed by a person having a relaxed eye with the near point of $25 \mathrm {~cm}$ ?

• A) \(2.6\)
• B) \(1.6\)
• C) \(3.6\)
• D) \(4.6\)

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Definitions:

Elasticity

The degree to which the quantity demanded or supplied of a good or service changes in response to a change in price.

Midpoint Method

A technique used in economics to calculate the percentage change in a variable by dividing the change by the average value of the initial and final values.

Twinkies

A popular snack cake in the United States, characterized by its golden sponge cake exterior and creamy filling.

Elasticity

A measure in economics that indicates how the quantity demanded or supplied of a product changes in response to a change in price.