23
QuizMultiple Choice

Waves and Sound — Test

Question 23 • Physics

Which two technologies use the same range of radio wave frequencies?

Answer
A
AM and FM radio broadcasting
B
television broadcasting and AM radio broadcasting
C
CB radios and submarine communication
D
cell phones and space communication

Explanation

Cell phones transmit and receive signals in the microwave portion of the radio-frequency spectrum. Space communication, such as communication with satellites, also commonly uses microwave frequencies. AM and FM broadcasting use different frequency bands, and AM radio frequencies are much lower than television broadcast frequencies.

AI-written and checked against the verified answer.

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