The Focal Length of the Objective Lens of a Telescope

question 78

Multiple Choice

The focal length of the objective lens of a telescope is 75.0 cm, and the eyepiece has a focal length of 6.00 cm. What is the magnification of this telescope?

• A) 12.5
• B) 200
• C) 0.645
• D) 450
• E) 0.0800

Identify the concepts of learned helplessness and behavioral disengagement.

Comprehend the psychological theories related to stress and coping strategies (e.g., Freud's theory).

Distinguish between various psychological defense mechanisms.

Acknowledge the role of cognitive appraisal in stress and coping.

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Definitions:

Hypersomnolence Disorder

A sleep-wake disorder characterized by an extreme need for extra sleep and feelings of excessive sleepiness.

Concentrating

The act of focusing one's attention or mental effort on a specific task or activity.

Forgetful

Characterized by the inability to remember things or to retain information.

African Americans

Refers to citizens or residents of the United States who have total or significant partial ancestry from any of the black racial groups of Africa.