

MCQOPTIONS
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1. |
The range of radio frequencies for communication through free space is which of the following? |
A. | Few hundreds of Hz to a few kHz |
B. | Few hundreds of MHz to a few GHz |
C. | Few hundreds of kHz to a few GHz |
D. | Few hundreds of Hz to a few thousands kHz |
Answer» D. Few hundreds of Hz to a few thousands kHz | |