Light from Each Part of the Source Being Observed Falls

question 109

Multiple Choice

Light from each part of the source being observed falls on each part of the primary mirror of a Newtonian telescope not obstructed by the secondary mirror. The important consequence of this is that

• A) the image does not have a dark spot indicating the presence of the secondary mirror.
• B) the image is not darkened (overall) because of the presence of the secondary mirror.
• C) cheaper spherical mirrors can be used rather than a more costly parabolic mirror.
• D) the secondary mirror can be made as large as needed without influencing the quality of the image.

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Definitions:

Kinesic Communication

The process of conveying messages or information through body movements, gestures, facial expressions, and posture.

Nonverbal Messages

Communication without words, conveyed through body language, facial expressions, gestures, posture, and other visual cues.

Stroke

In psychology, a metaphorical term for a unit of interpersonal recognition or validation.

Negative Metacommunication

Communication that implicitly or explicitly transmits a negative message about the communication process itself, potentially undermining the content or relationship between the communicators.