Compared with the 2

question 395

Multiple Choice

Compared with the 2.5-m-diameter Mount Wilson telescope,the 10-m-diameter Keck telescope has a greater light-gathering power by a factor of:

• A) 4.
• B) 16.
• C) 2.
• D) 1; they have the same light-gathering capability.

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Definitions:

Expand

To increase in size, number, or importance, often relating to businesses aiming to grow through increased operations, product lines, or market reach.

Equilibrium

The condition that exists when quantity supplied and quantity demanded are equal. At equilibrium, there is no tendency for price to change.

Incentive

A factor, often financial, that motivates individuals or organizations to perform certain actions or behave in a desired way.

Long Run

A period in economics sufficient for all adjustments to be made, including physical capital and not just prices.