Question

6. The speed of light in air is
(a) 3 ~ 107 m/s (b) 3 108 m/s
(c) 3 10 m/s (d) 3 x 109 m/s what is answer​

Answer 1

Answer:

c option is right answer

Answer 2

3.)..frictional force....

6) option b is the correct Answer