Question

Light enters from air to an ice cube, having refractive index 1.31. What is the
speed of light in the ice cube?​

Answer 1

Answer:

the speed of light in ice is 2.29x 10 8 m/s.

Explanation:

Answer 2

Answer:

2.29 × 10⁸ m/s

Explanation:

Refractive index = ( speed in vacuum ÷ speed in cube )

1.31 = ( 3 × 10⁸ m/s ÷ speed in cube )

speed in cube = ( 3 × 10⁸ m/s ÷ 1.31 )

speed in cube = 2.29 × 10⁸ m/s