MCQOPTIONS
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| 1. |
What is speed of radio waves in free space? |
| A. | 3 x 10<sup>6</sup> m/s |
| B. | 3 x 10<sup>9</sup> m/s |
| C. | 300 x 10<sup>6</sup> m/s |
| D. | 300 x 10<sup>9</sup> m/s |
| Answer» D. 300 x 10<sup>9</sup> m/s | |