McqMate
| Q. |
Which of the following occurred first? |
| A. | Albert Einstein propounded the General Theory of Relativity |
| B. | Max Planck unveiled the Quantum Theory |
| C. | Guglielmo Marconi sent out the first wireless signals |
| D. | Wright Brothers successfully flew an aircraft |
| Answer» C. Guglielmo Marconi sent out the first wireless signals | |
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Explanation: Guglielmo Marconi sent out the first wireless signals. In the early summer of 1895 and despite an intervening hill, Marconi achieved signal transmission and reception over a distance of about 2km. Success was indicated initially by the waving of a handkerchief and progressed to the need to fire a gun. The theory of relativity transformed theoretical physics and astronomy during the 20th century. |
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