Question

Light enters from air to a medium ' X' it's speed in medium X becomes 1.5×10 to the power 8 speed of light in air is 3×10to the power 8 m/s . Find the Refractive index of medium X

Answer 1

3×10raised to power 8\1.5 ×10raised to power 8=2

Answer 2

The answer is 2 is I am correct