25
Question Question 25
State the speed of light in:
(a) air
(b) glass
(a) The speed of light in air is 3 x 108 m s-1.
(b) The speed of light in glass is 2 x 108 m s-1.
State the speed of light in:
(a) air
(b) glass
(a) The speed of light in air is 3 x 108 m s-1.
(b) The speed of light in glass is 2 x 108 m s-1.