A Small Refracting "Spyglass" Telescope Has an Objective with a Focal

question 353

Multiple Choice

A small refracting "spyglass" telescope has an objective with a focal length of about 30 inches.The world's largest refracting telescope at Yerkes Observatory has an objective with a focal length of 63.5 feet.If they both use the same eyepiece,how much larger is the image with Yerkes than with the spyglass?

• A) about twice
• B) about 16 times
• C) about 25 times
• D) about 625 times

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Definitions:

Psychic Energy

A concept in psychoanalytic theory referring to the force behind human behaviors, thoughts, and feelings originating from innate instincts and drives.

Moral Judgments

Decisions or evaluations about the rightness or wrongness of actions, often based on a set of ethical principles or societal norms.

Phallic Stage

The third stage in Freud's theory of psychosexual development, occurring around age 3 to 6, where the focus of the libido is on the genital area.

Gender Identity

A person's internal sense of their own gender, whether it be male, female, a blend of both, or neither, and how they perceive themselves and what they call themselves.