Topical Questions
These questions are keyed to the major topics in the chapter. Usually a question that is answered at the back of this book is paired with a similar one that is not.
The regions of the electromagnetic spectrum are shown in Figure 7.1. Answer these questions on the basis of this figure.
(a) Which type of radiation involves less energy, radio waves or infrared radiation?
(b) Which radiation has the higher frequency, radio waves or microwaves?
Figure 7.1
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