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| Q. |
The speed of light in air is – |
| A. | 3 x 10⁸ m/s |
| B. | 3 x 10⁻⁸ cm/s |
| C. | 8 x 10³ m/s |
| D. | Infinity |
| Answer» A. 3 x 10⁸ m/s | |
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Explanation: Speed of light (in Media) = Speed of Light (in Vacuum) / Refreactive Index of Material. Speed of light in air as taken generally is 3 X 10 power 8 meter per second. |
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