If the speed of light in a medium is 1.5 x 108 m/s. What is the absolute refractive index of the medium?
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Given - Speed of light in a medium - 1.5*10^8 m/s
Find - Absolute refractive index of the medium.
Solution - To find absolute refractive index of the medium ratio of speed of light in vacuum to speed of light in medium is calculated. It is given by the formula -
n = c/v
In the formula, n is refractive index, c is speed of light in vacuum and V is speed of light in medium.
Keeping the values in equation-
n = 3*10^8/1.5*10^8
n = 2
Thus, absolute refractive index of medium is 2.
Answered by
2
Explanation:
Given: Speed of light in medium (v₂) =
1.5 x 108 m/s,
velocity of light in vacuum (v₁) = 3 × 108
m/s
To find: Absolute refractive index (n)
Formula: n V1 V2
Calculation: From formula,
3 × 108 1.5 × 108 n = 2
The absolute refractive index of the medium is 2.
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