How Far from a +50-Mm Focal Length Lens, Such as Is

question 31

Multiple Choice

How far from a +50-mm focal length lens, such as is used in many 35-mm cameras, must an object be placed so it will form a real image that is 3.0 times the size of the object?

• A) 58 mm
• B) 67 mm
• C) 46 mm
• D) 52 mm

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Definitions:

Income Effect

Shifts in economic or personal income and how these shifts influence the demand for certain goods or services.

Disparity of Income

The gap in income and wealth distribution among individuals or groups within a society, leading to economic inequality.

Nominal Wages

The amount of money paid to employees without adjustment for inflation, reflecting the face value rather than the real purchasing power.

Real Wages

The buying capacity of earnings, when accounted for inflation, showing the amount of goods and services that can be purchased.