If the Image Distance Is Negative

question 23

Multiple Choice

If the image distance is negative,

• A)the image is real.
• B)the image is virtual.
• C)the lens is converging.
• D)the object distance must also be negative.
• E)this is not possible; the image distance must be positive.

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Definitions:

Psychoactive Drug

Any substance that alters mood, perception, or thought; called a controlled substance if approved for medical use.

Illicit Drug

Substances whose production, sale, or use is prohibited by law, including drugs that are subject to drug control and prohibition policies.

Narcotic

A drug or other substance affecting mood or behavior and sold for nonmedical purposes, especially an illegal one.

Amphetamines

A class of stimulant drugs that affect the central nervous system, increasing alertness, concentration, and physical energy.