What Is So Unique About the Mirrors of Telescopes Such

question 9

Multiple Choice

What is so unique about the mirrors of telescopes such as the Keck Observatory, Gran Telescopio Canaries and the soon-to-be-built Giant Magellan Telescope?

• A) The mirrors are made of a newly designed metallic material.
• B) The mirrors can fold up went not in use.
• C) The mirrors are inexpensive.
• D) The mirrors are segmented.
• E) The mirrors are thin.

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Definitions:

Gain Electrons

The process by which an atom or a molecule acquires one or more electrons, often leading to a reduction in oxidation state.

Lose Electrons

Refers to the process in which an atom or molecule undergoes oxidation, resulting in the release of electrons.

Atomic Number

Number of protons within the nucleus of an atom.

Outermost Shell

The last or furthest energy level of an atom where electrons can be found, significant in determining an element's chemical properties.