A Telescope Is Set Up in an Introductory Physics Lab

question 53

Multiple Choice

A telescope is set up in an introductory physics lab using lenses of focal lengths 10 cm and 50 cm. Since both lenses are the same diameter, it is not immediately clear which one to use as the eyepiece and which to use as the objective. If one uses the lens with a 50 cm focal length as the eyepiece, what power results?

• A) 500
• B) 5
• C) 0.2
• D) 0.002
• E) one cannot look through the system in this direction

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Definitions:

Legal Reserve Requirements

Guidelines enforced by central banks on the minimal reserves that banks should maintain in relation to their deposits.

Destroyed Money

The process of physically eliminating money from circulation, typically by central banks, to manage a currency's supply.

Check Clearing

The process by which banks settle transactions by transferring money from the check writer's account to the recipient's account.

Federal Funds Rate

The interest rate at which banks lend reserve balances to other banks overnight, on an uncollateralized basis.