The Focal Length of the Objective Lens of a Telescope

question 37

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

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Definitions:

Cognitive Dissonance

The discomfort in one's mind caused by holding multiple opposing beliefs, ideas, or values concurrently.

Social Psychological Theory

A branch of psychological theory that explores how individual behavior is influenced by the social environment and interactions.

Perceived Behavioral Control

An individual's belief in their capacity to execute behaviors necessary to produce specific performance attainments.

Theory of Planned Behavior

A psychological theory that links beliefs and behavior, suggesting that an individual's intention to engage in a behavior is the principal determinant of whether they will do so, influenced by attitudes, subjective norms, and perceived behavioral control.