Which Property of a Telescope Determines Its Light-Gathering Power

question 103

Multiple Choice

Which property of a telescope determines its light-gathering power?

• A) the focal length of the objective
• B) the focal length of the eyepiece
• C) the diameter of the primary
• D) the length of the telescope tube

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Definitions:

Marginal Revenue Product

The additional revenue generated from using one more unit of a factor of production or input.

Mechanics

The branch of physics that deals with the behavior of physical bodies when subjected to forces or displacements and the subsequent effects of the bodies on their environment.

Profit

The financial gain made in a transaction or through business operations after subtracting all expenses.

Marginal Revenue Product

The extra income produced through the use of an additional unit of a resource, like labor or capital.