Conceptual Physics (12th Edition)

Published by Addison-Wesley
ISBN 10: 0321909100
ISBN 13: 978-0-32190-910-7

Chapter 33 - Think and Explain - Page 635-636: 80


Geiger counters only detect radiation; they don't create it. Avoiding Geiger counters to escape radioactivity is as effective as avoiding thermometers during a heat wave.

Work Step by Step

Geiger counters are discussed on page 626. About 75-80 percent of our annual radiation dosage comes from natural sources, as the textbook says on pages 619-620. We ourselves are radioactive, from the potassium in our bodies, and from ingesting the radioactive Carbon-14 that is continuously being generated in the atmosphere. Your friend cannot escape radioactivity.
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