Question

The speed of light in air is:
(a) 3 × 108 m s-1
(b) 330 m s-1
(c) 5100 m s-1
(d) 3 × 1010 m s-1

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Answer

(a) 3 × 108 m s-1

Reason — The speed of light in air is 3 x 108 m s-1

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