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If the speed of light in a sphere is 2 × 108 m/s, its index of refraction is
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If the speed of light in a sphere is 2 × 108 m/s, its index of refraction is

User Xiomara
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Refractive index, n = v1/v2

Where,
v1 = Speed of light in vacuum = 3*10^8 m/s
v2 = Speed of light in a medium (sphere) = 2*10^8 m/s

Therefore,
n= (3*10*8)/(2*10^8) = 1.5
User Swiety
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