The Focal Length of a Thin Lens Is 40 Mm

question 58

Multiple Choice

The focal length of a thin lens is 40 mm and its aperture diameter is 10 mm.What is the f-number of this lens?

• A) f/4.0
• B) f/2.0
• C) f/5.6
• D) f/0.30
• E) f/0.40

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Definitions:

Supply Curve

A graphical representation showing the quantity of goods that producers are willing and able to sell at different prices.

Market for Labor

The economic marketplace where employers find workers and workers find jobs.

Backward-Bending

Referring to the labor supply curve, it describes the scenario where an increase in wage rates leads to a decrease in the hours worked due to an increase in income effect over substitution effect.

Labor Supply Curve

The labor supply curve is a graphical representation showing the relationship between the quantity of labor supplied and the wage rate in the labor market.