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Q. |
The velocity of light in vacuum is : |
A. | 3 * 108 ms-1 |
B. | 2 * 108 ms-1 |
C. | 3 * 107 ms-1 |
D. | 3 * 106 ms-1 |
Answer» A. 3 * 108 ms-1 | |
Explanation: The speed of light in a vacuum is 186,282 miles per second that corresponds to about 3 * 108 ms-1. |
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