A Converging Lens with Two Convex Surfaces Has a Front

question 15

Multiple Choice

A converging lens with two convex surfaces has a front surface with radius of curvature of 13.1 cm;the back surface has radius of curvature of 16.5 cm,and it is made from material with an index of refraction of 2.10.What is the focal length of the lens?

• A)6.64 cm
• B)57.8 cm
• C)−57.8 cm
• D)3.48 cm
• E)30.3 cm

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Definitions:

Comparative Advantage

is the ability of an individual or country to produce a good or service at a lower opportunity cost than competitors.

Opportunity Cost

The cost of what is foregone in order to pursue a certain action, essentially the benefits you could have received by taking an alternative action.

Consumer Sovereignty

The idea that consumers ultimately dictate what will be produced (or not produced) by choosing what to purchase (and what not to purchase).

Economic Problem

The issue of limited resources to meet unlimited wants and needs, requiring choices and prioritization.