What Characteristic of the 10-M Keck Telescopes Makes Them Fundamentally

question 248

Multiple Choice

What characteristic of the 10-m Keck telescopes makes them fundamentally different from older telescopes, such as the one on Mount Palomar?

• A) They are located in Earth's orbit, away from all the distortions of Earth's atmosphere.
• B) They are actually four closely spaced telescopes that can be operated together as if they were a single telescope.
• C) The primary mirrors are large, very thin pieces of glass that can be deformed rapidly to compensate for seeing.
• D) The primary mirror is made up of 36 separate mirror segments.

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Definitions:

Marginal Social Cost

The total cost society bears for the production of an additional unit of a product, including both private and external costs.

Marginal Private Cost

The additional cost borne by a producer for producing one extra unit of a good or service.

Marginal Cost Curve

A graphical representation showing the increase in total cost that arises from producing one additional unit of a good or service.

Industry Supply

The total quantity of a good or service that all producers in a market are willing and able to sell at various prices.