The Speed of Light Changes When It Goes from Ethyl

question 20

Multiple Choice

The speed of light changes when it goes from ethyl alcohol (n = 1.36) to carbon tetrachloride (n = 1.46) . The ratio of the speed in carbon tetrachloride to the speed in ethyl alcohol, v₂/v₁, is

• A) 1.99
• B) 1.07
• C) 0.932
• D) 0.511
• E) 0.760

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Definitions:

Rationalization

Psychological defense mechanism in which a person invents acceptable excuses for unacceptable behavior.

Defense Mechanisms

Unconscious psychological strategies used to cope with reality and protect the ego from anxiety.

Freud

An Austrian neurologist named Sigmund Freud created psychoanalysis, a therapeutic approach that treats mental illnesses by facilitating discussions between a patient and a psychoanalyst.

Superego

A component of Freud's psychoanalytic theory of personality, representing the moral conscience and ideal standards imposed by society and parents.