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:

Inelastic

Describes a condition where the demand or supply for a good or service is not significantly changed by changes in price.

Elastic

Elasticity in economics refers to the responsiveness of demand or supply to changes in price or income.

Completely Inelastic

Describes a situation where the demand or supply for a good or service does not change in response to changes in price.

Inelastic

Describes a situation where the demand or supply for a good or service is relatively unresponsive to changes in price.