The index of refraction for Lucite is 1.5. What is the approximate speed of light in the Lucite?
The index of refraction for Lucite is 1.5. What is the approximate speed of light in Lucite?
a) 1.5 × 10^8 m/s
b) 2.0 × 10^8 m/s
c) 3.0 × 10^8 m/s
d) 4.5 × 10^8 m/s
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The index of refraction for Lucite is 1.5. What is the approximate speed of light in the Lucite?
1.5 E8 m/s
2.0 E8 m/s
3.0 E8 m/s
4.5 E8 m/s
velocity of light in lucite v = velocity of light in air or vacuum / refractive index of medium.
==> v =3*10^8 / 1.5
v=2.0 *10^8
Ans is 2.0 E8 m/s
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