What Must Be Used to Maintain the Optics and Operation

question 48

Multiple Choice

What must be used to maintain the optics and operation of an infrared telescope?

• A) filters
• B) lasers
• C) coolant
• D) oxygen
• E) tertiary mirrors

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Definitions:

Primary Emotions

Basic emotions that are hard-wired into the human brain, universally experienced and recognized across cultures, such as joy, anger, fear, and sadness.

Secondary Emotions

Complex emotional reactions that develop based on one’s feelings about primary emotions, such as shame about feeling fear.

Social Emotion

Emotions that require self-reflection and evaluation of one's relationship with society, such as guilt, shame, or pride.

Surprise

A sudden and unexpected event or piece of information.