A Radio Telescope Has a Parabolic Surface

question 406

Multiple Choice

A radio telescope has a parabolic surface. If it is 1 m deep and 20 m wide, how far is the focus from the vertex?

• A) 100 m
• B) 25 m
• C) 1 m
• D) 5 m

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Definitions:

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Agonist

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GABA

Gamma-Aminobutyric Acid, a chief inhibitory neurotransmitter in the mammalian central nervous system, playing a key role in reducing neuronal excitability.

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The process of lessening or alleviating feelings of anxiety, stress, or worry, which can be achieved through various therapeutic techniques, relaxation methods, or medications.