Light enters from air to glass having reflective index 1.50. what is the speed of light in the glass? the speed of light in vacuum is 3×10⁸m/s
Answers
Answered by
42
Answer:
Speed of light in vacuum (c) = 3 × 108 ms-1
Refractive index of glass (ng) = 1.50
Find out
The speed of light in the glass
Formula
Refractive index of a medium = Speed of light in vacuum/Speed of light in the medium
Refractive index of glass = Speed of light in vacuum/Speed of light in the glass
Speed of light in the glass (v) = Speed of light in vacuum/ Refractive index of glass
v = c/ng
v = (3 × 108)/1.50
v = 2 × 108 ms-1
The speed of light in glass = v = 2 × 108 ms-1
Similar questions