At the Largest and Most Modern Astronomical Observatories on Earth

question 3

Multiple Choice

At the largest and most modern astronomical observatories on Earth today, which of the following regularly happens to the image formed by the telescope?

• A) it is viewed by a group of graduate students who then make a sketch of it to have a permanent record
• B) it is recorded on a piece of black & white film, which is then developed in a bath of chemicals
• C) it is reflected by a special arrangement of mirrors back into the beam and up into the sky
• D) it is recorded using an electronic detector called a CCD for later analysis
• E) it is sent to the FBI so they can check for evidence of Russian hacking

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Definitions:

Mark-up

A markup on the goods’ purchase cost to account for administrative expenses and profit.

SuperMart

A large supermarket, often part of a chain, offering a wide variety of goods.

Markdown

A reduction from the original or list price of a good or service to increase its attractiveness to buyers.

Regular Selling Price

the normal price at which a good or service is sold before any discounts or promotions.