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Q. |
The scientist who first sent electromagnetic waves to distant places is – |
A. | James Clerk Maxwell |
B. | Heinrich Hertz |
C. | Thomas Alva Edison |
D. | John Logie Baird |
Answer» C. Thomas Alva Edison | |
Explanation: Radio is the transmission of single through free space by electromagnetic radiation of a frequency significantly below that of visible light, in the radio frequency range, from about 30 kHz to 300 GHz. Those waves are called radio waves. |
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