A ray of light is shown as it passes through a positive thin lens. If the grids are 1.0 cm apart on the figure, this lens has a focal length of
Definitions:
Efficient
The most efficient employment of resources to attain the intended result while minimizing waste or exertion.
Better Off
A situation where an individual or group is in a more favorable or advantageous position than before.
Economic Efficiency
A condition in which all available resources are utilized in a way that produces the highest combination of quantity and quality of goods and services.
Market Economy
An economic system in which decisions on production and consumption are based on voluntary exchange in markets.
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