The speed of light in air is – (1) 3 x 10⁸ m/s (2) 3 x 10⁻⁸ cm/s (3) 8 x 10³ m/s (4) Infinity

The speed of light in air is – (1) 3 x 10⁸ m/s (2) 3 x 10⁻⁸ cm/s (3) 8 x 10³ m/s (4) Infinity
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(1) 3 x 10⁸ m/s 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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Description : What is the speed of light in air ?

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