Many Fortunate Amateur Astronomers Have Telescopes with Primary Mirrors 20

question 19

Multiple Choice

Many fortunate amateur astronomers have telescopes with primary mirrors 20 cm in diameter.The recently built Keck telescopes on Hawaii have mirrors 10 m in diameter.How much more light is collected by one of the Keck telescopes compared with the amateur's telescope?

• A) 2500 times more
• B) 50 times more
• C) About 7 times more
• D) 2 times less

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Definitions:

Discontinue

To stop using a product or halt a process or treatment, often on a permanent basis.

NPO

An abbreviation for "nil per os," a medical instruction meaning to withhold oral food and fluids from a patient for a specific period.

QAM

stands for "Quality Assurance Management" or "Quadrature Amplitude Modulation" depending on context; in healthcare, it often relates to maintaining standards.

Parenteral

A route of administering medications or nutrients bypassing the digestive system, often through injections.