When the Distance Between a Point Source of Light and a Light

question 61

Multiple Choice

When the distance between a point source of light and a light meter is reduced from 6.0 m to 2.0 m, the intensity of illumination at the meter will be the original value multiplied by:

• A)3
• B)9
• C)1/3
• D)1/9
• E)1

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Definitions:

Bountiful Harvest

An exceptionally large and plentiful crop yield within a particular season.

Barriers To Trade

Measures implemented by governments or economic blocs to restrict or control the free exchange of goods and services across borders, including tariffs, quotas, and regulations.

Economic Growth

A rise in the output of goods and services within an economy over a specific time frame, usually quantified by the Gross Domestic Product (GDP).

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Gross Domestic Product adjusted for inflation, measuring the value of goods and services produced by a country in a specific period, reflecting actual productivity.