If a 20 W Laser Beam,which Has an Initial Diameter $\times$

question 72

Multiple Choice

If a 20 W laser beam,which has an initial diameter of 2.0 mm,spreads out to a diameter of 2.0 m after traveling 10,000 m,what is the final intensity of the beam?

• A) 20 \(\times\) 10^-4 W/m²
• B) 20 \(\times\) 10^-6 W/m²
• C) 20 \(\times\) 10^-8 W/m²
• D) 6.4 W/m²
• E) 6.4 \(\times\) 10^-6 W/m²

Comprehend the concept of erogenous zones and their relevance in Freud’s theory of psychosexual development.

Explain the significance of defense mechanisms in disguising threatening impulses and reducing anxiety.

Identify the implications of Freudian slips and their relationship to the unconscious mind.

Understand the geopolitical and territorial changes resulting from the French and Indian War and their impacts on colonial land ownership and relations with Indigenous peoples.

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Definitions:

Automatic Response

An involuntary or reflex action that occurs in response to a stimulus without conscious thought.

Evaluative Reaction

Judgements or feelings about the value or worth of something, based on a rapid assessment.

Affects

The experience of feeling or emotion.

Emotions

Complex psychological states involving three components: a subjective experience, a physiological response, and a behavioral or expressive response.