Question

5. What is the speed of light in air?
(a) 346 m/s
(b) 3x108 m/s
(c) 3x1020 m/s
(d) 1.8x10 m/s​

Answer 1

Answer:

Option B.

3 × 10^8 m/s

Speed of light in air is 3 × 10^8 m/s.